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hot selling lifepo4 batterie headway wholesale for e-bike

hot selling lifepo4 batterie headway wholesale for e-bike

Hot selling lifepo4 batterie headway wholesale for e-bike

Model
LFP38120S
Service
Assembling, Customized battery packs, Testing, Shipping
MOQ
50
Shipment
Sea/ Air/ express
Payment
PAYPAL/ Payoneer/ TT/ Westerm Union
Material
LiFePO4
Specification
3.2V 10AH
Price
Get Latest Price
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Quantity Needed:
Pieces
E-mail:
Company Advantages
1. The content on Freego lithium ion battery pack is arranged reasonably. It is created by our professional designers who are equipped with packaging and printing knowledge and expertise. A team of 60 R&D staff is allocated for the manufacturing of the product
2. This product can meet the challenge of the market competition. Impeccable after-sales service is offered for the product to solve customers' worries
3. Being lithium ion battery pack , lifepo4 batterie has a good application prospect. Each performance of the battery surpasses the average level of the whole industry

ITEM

SPECIFICATION

Nominal capacity

10Ah @ 0.5C

Minimum capacity

9.5Ah @ 0.5C

Nominal voltage

3.2V

Max Charging voltage

3.65 ±0.05 V

Discharge ending voltage

2.5 ±0.05 V

Charge current

Standard charge: 0.5C

                         Max charge: 1C when T≥10 OC

                  Max charge: 0.2C when 10 OC≥T≥0 OC

                   Max charge: 0.1C when 0 OC≥T≥-10 OC    

Discharge current

                                  Standard discharge: 1C                                                   Max continuous discharge: 3C                                               Max instant (30s) discharge: 10C

Recommended charge and discharge

cell surface temperature

        Charge: 045 OC                                 

                               Discharge: -2060 OC

Maximum allowable charge and discharge cell surface

temperature. Charging and discharging at these conditions will shorten cell cycle life.

Charge: 60 OC
Discharge: 75 OC

Humidity range

090%RH (noncondensing)

Internal resistance

6mOhm (AC Impedance, 1000HZ)

Cell dimension

   Height: 136 mm Max                            

                       Diameter: 38.5mm Max

Weight

≤345g

ITEM

CRITERION

Discharge rate capability

discharge capacity at 1C

discharge capacity at 0.5C

98%


discharge capacity at 3C

discharge capacity at 0.5C

≥100%


discharge capacity at 5C

discharge capacity at 0.5C

≥100%

Cycle life

discharge capacity of 2000th cycle

original discharge capacity

≥80%

High-Low temperature discharge

performance (0.5C discharge)

discharge capacity at -10 OC

discharge capacity at 25OC

≥60%


discharge capacity at 0 OC

discharge capacity at 25OC

≥75%


discharge capacity at 60 OC

discharge capacity at 25OC

≥97%

Storage performance

residual capacity after 28d storage

original diacharge capacity

≥97%


recover capacity after 28d storage 

original diacharge capacity

≥99%



Company Features
1. After years of steady development, Freego Power Co., Ltd. has grown to be a leading manufacturer of lifepo4 batterie . We manage the supply of products to customers worldwide, especially Japan, the United States, and the United Kingdom. The demand for our products in the international market demonstrates our ability to meet or exceed the needs of every customer.
2. We have been certified under the ISO 9001 international management system. This system guarantees an efficient management process in place to monitor the production process and opens the door for continuous improvement.
3. Our company has won a number of different awards with our fascinating projects. These awards are not only recognition from the industry but also our motivation. To make the tenet of lithium ion battery pack be an important part in the development, but also it is a source of creating value for Freego. Inquire!
Super powerful bright light.
Great for the price, very happy
Great product@
The lights are very bright and seem well made. So far very happy with the purchase
I like the sevice over all..
These lights are more than I expected. They work great!
good product
Good price, good product and shipped on time. I would buy again.
Best flashlights I have. The ability to modify the size and focus of the light is better than in any other flashlight I've used. Their compact but solidly built, and come with a really nice protective case.
The Bose Revolve + is a great speaker overall but a bit on the pricey side. Here’s my review – Packaging – Beautiful, simple, elegant and slick. I have a special place in my heart for opening electronics, and the Bose Revolve + did not disappoint. No wasted space here and very well protected. Sound – While you won’t achieve the quality of some of a higher end wired speaker, this Bluetooth beast packs a punch. The bass is very noticeable and can even rattle the table it’s sitting on with some songs. Treble and mids are very clean. I’ve tested this speaker on everything from Hip Hop to classical and it never disappoints. The 360-degree sound is truly phenomenal. Aesthetics – I have the black version of the speaker and it is simply stunning. The buttons are solid feeling, it has a good weight to it overall and the handle is very solid. Nothing but the best from Bose. Functionality – This is where the speaker loses a star for me. It’s not a huge deal but I was disappointed that the speaker came fully discharged and there was no indication that a complete charging cycle was needed before the first use. I know this seems petty but it almost made me feel as though I received a defective unit as the Bluetooth connection dropped multiple times and was even rendered completely useless at one point even though it was plugged into the wall. After 30-40 minutes of frustration, I decided to leave the speaker charging and actually open the instruction manual. (Something I never do, LOL) The quick start guide simply stated to choose the language, pair and listen. While it instructed you to plug it in, it never said to let it charge for a while before use. (which was the only way I found it usable out of the box) Also, the full instruction manual is only available online. I respect the “Go Green” approach but in a situation like this, it was a tad bit frustrating. The speaker is drop and water resistant, which is a big plus. I haven’t purposely tested either of these yet but it seems very solid and I would have no concerns with leaving it out in the rain or an occasional splash from the pool. The speaker boasts 16 hours of battery life and I’ve found this to be right on if the device is fully charged. This is more than enough for a long summer BBQ out in the sun. The battery is by far one of the most amazing features of the Bose Revolve +. App – Honestly, the app doesn’t add much for me. It’s a rather basic app and I find myself reverting to the music app on my iPhone rather than using the limited controls within the Bose application. One bonus the app does provide is the “Party Mode” which allows two Soundlink Speakers to be paired at the same time. This would be great but with the price of the unit, I will be waiting a while before I invest in a second speaker. Overall – In conclusion, this is a great speaker and I highly doubt there will be any cases of buyer’s remorse. If you’re willing to pay the price, you will not be disappointed. There were some small setbacks in some of the initial setup but nothing to really write home about. There was a firmware update that popped up today as well, not sure if that helped tweak some of the issues I described earlier with the Bluetooth connectivity and charging or not but will update if so. I love the speaker and hope to get a matching one in the near future.
I just got my Revolve+ today - a momentous day. I discovered that Bose released a spiritual successor to the SoundLink Mini / Mini II a few months ago and bought one within 15 seconds of my discovery. Shame on me for not knowing sooner. A bit of history: I bought the Mini a few after it was released. I thought - goodness gracious that sounds good for something I could slip in my pocket. It doesn't get super-loud; even at its own maximum volume the bass is badly washed out; producing its best performance really requires thoughtful placement. It must be backed up within a foot (or less) of a good solid vertical surface. On the upside: it attempts to attack bass frequencies that numerous speakers 5X its size filter out altogether. It's my "featherweight champion". Step up into a mid-size portable speaker and the Klipsch KMC-3 just walks away with it - and another speaker I bought and kept, the Bang & Olufsen Beolit 15 (see comparison photo beside Revolve+ attached), is similarly big-sounding, punchy, expansive and crisp, just sort of delivers its performance differently than the Klipsch and maybe with less WOOF. Both, masterpieces of listening enjoyment, for all kinds of music. But the kind of sound the SoundLink Mini could generate at moderate listening levels and in any environment just make it lovable - a real "WOW" moment when someone hears the kind of sound it can produce. Oh... and it's attractive. And well-made. And did I say, tiny? I like it so much (and my wife more or less expropriated the original Mini to carry all over the house and yard for kid-time and chores and exercise and such) that I bought a Mini II shortly after it came out, as a travel buddy on business trips. Back to the little guys. I've tried many. Not all, but many. Perhaps better than thirty makes and models in the "mini" and "mid-size" portable Bluetooth speaker ranges and the SoundLink Mini kept knocking them all down in the "ultra-portable" speaker form factor. For years, I've been bemoaning the lack of competent competition for this little guy. There really was none. Even as recently as... last week... I bought the theoretically estimable KEF Gravity One, same form factor as the SoundLink Mini and maybe 50% larger, but in theory, with dominant sound... and... woah. No. No, once again the SoundLink Mini slays a powerful foe. Yet again, I whined that nobody seems to be able to outdo the SoundLink Mini... including Bose themselves. When I found these SoundLink Revolve speakers were the successor to the SoundLink Mini I had VERY high expectations. Bose must have taken an excellent, industry-leading mini portable speaker and made it even better. The verdict: maybe it's better - but different. Not just a clear head-and-shoulders better-than-SoundLink Mini win. I would say, with bass response the Mini wins. Using a tone generator, the Mini is maybe -1 or 2db below 60Hz and inaudible under 45Hz. With the Revolve+, it's quieter under about 58Hz and disappears at 38Hz. On the face of it you'd think, good, slightly deeper bass, if only by a hair. But, the Revolve seems not to be able to emphasize, or project, those tones, especially around 60-80Hz, as well as the Mini. It's there, but it just doesn't balance out with the mids and treble as well as the Mini. The trade-off is soundstage. With the Mini, the sweet spot is pretty much a laser beam directly facing the front of the speaker. With the Revolve+, it REALLY doesn't matter which direction it's pointing - play your favorite song, pick up the speaker and rotate it in your hand, there's truly no distinction, no variation, at any point 360 degrees around the vertical axis of the unit. I'll also point out that the sound quality is nearly identical no matter where you are vertically - above, below, eye level with the speaker grille. So, one thing it does exceptionally well is actually filling the space around it with the music. The Revolve+ gets quite a bit louder than the Mini, but at the same time, similar to the Mini, the "loudness" of the mids and treble quickly defeats its ability to make bass and you end up with a sort of tinny, washed out one-dimensional blaring noise. It gets loud... but you wouldn't want to have to listen to it that way. It can, but you don't want it to. Similar to the Mini, the best sound is at low to moderate volumes. Aesthetically... it's a music lantern. A music canister. If you took it camping and felt for it in the dark, you might not be able to tell if you grabbed the speaker or the kerosene lamp. By way of lanterns, it's a very nice one indeed. The Mini is a brilliant, chic, retro shape with modern materials. This... not so much. The shell is aluminum and feels very solid to hold, but the feel doesn't save the looks. I guess there's really only so much you can do to have a real 360 degree portable speaker that doesn't look like a can or lantern. I don't have any bright ideas. Just pointing out that vs. the Mini, this isn't something you'd put on an executives' bookshelf and say, yeah, look at that. Nice huh? It definitely belongs on a picnic table alongside the ketchup and plate of hot dogs. And quite to that point - the sound quality seems to be precisely the same model. The Mini seems to have been designed first and foremost to pack a little tiny proper audiophile-quality listening experience into a little tiny package. It has a narrow soundstage, depends on positioning to really make the bass resonate, but boy, when you hear it performing, does it ever perform. This one is designed more to be a Good listening experience, but for everybody. Less on perfecting the sound, more on making it fill the space around it entirely. This is designed for parties. The Mini is designed for desks, bookshelves and kitchen counters. Going back and forth between the Mini II and the Revolve+, sitting right in front of me, on the same shelf, playing the same tracks, I still think I like the Mini's sound a notch better. The Revolve+ isn't bad at all, it's just different. Nevertheless, I''ll most likely keep the Revolve+. Keeping pace with the Mini already puts it beyond any competitor. I'll use this outside, maybe for parties out on the deck. Happy listening!
I purchased this to stream my playlist from my iPad for my wedding. I was afraid one small speaker in a huge room would be underwhelming. We didn’t have to turn the speaker up to max volume, the sound was not distorted and was the expected Bose quality. The only drawback is there’s no way to adjust the bass & other levels. But, since this is in lieu of a DJ, that is really a non-issue for us. I opted for this instead of the Soundtouch 30, hoping it would work in our space and because it is portable and wireless. Two of these would be amazing, but pricey. I also purchased the charging cradle...but there is really no need for it. I would purchase another speaker, but not another charging cradle.
Extremely well constructed. I have always heard Bose was overpriced and thought I had paid a premium for the name, until it fell off a railing onto wooden steps 8 to 10 feet below. Oh crap, says I, going to examine it and expecting to find - in this order (1) the speaker shattered into bits, or (2) massive dents (3) internal damage, rattle or non function. Instead, it was unscratched and working perfectly. I would be even more surprised if Bose's competitors survived this test.
PREFACE: Any time you read a review about speakers that was not conducted in a lab with calibrated tools, it is going to be subjective. This review is subjective. It means that the results of my test are only as I my ears & brain perceive them. Everyone hears the exact same audio differently. Everyone has a preference as to what sounds “best”. You hear people refer to music as “warm” or “bright” or “tiring” or “smooth”. I like to think of it like this: You probably have an EQ on your car radio or home audio system. How do you have it set? What does the ‘curve’ look like? Some people don’t like the obnoxious thump of bass, so they turn that frequency range down. Some people don’t like the ‘hissing’ sound of cymbals, so they turn those frequencies down. My preference is a curve that is high on the ends (Bass and Treble) and low in the middle (Midrange). This directly impacts what is heard in music. This particular review is specific to the Harman Kardon Onyx series and the Bose SoundLink Revolve+. My spending cap was $300 on Amazon, so that ruled out other speakers like the Vifa Oslo and B&W Zeppelin. I’d still like to try the HK Play+Go, but don’t have the resources right now. (Unless someone would like to gift me one to review ?) ------------------ I’ve just spent the past month with the Oontz Angle 3XL Ultra ($100), the DOSS Soundbox XL ($70), Bose SoundLink Revolve+ ($270), the Harman Kardon Onyx Studio 1 (n/a), Studio 4 ($175), and Studio 5 ($164). I wanted to find the best speaker that fits MY listening profile. My primary focus is on audio quality via Bluetooth with a $300 max price on Amazon. Other factors like portability, water resistance, and battery life are not heavily weighted for me because this speaker is primarily intended for indoor use with AC power. So…”Long review short”…my preference in order of “Best” to “Really Good”. (None of them are bad.) The HK Onyx Studio 5 is my favorite. Why? It sounds the best (to me) and costs the least. Followed by the Onyx 4, and then the Bose Revolve+. The HK Onyx 1 is purely for reference and is no longer available to purchase. I decided not to include the Oontz and the DOSS in this writeup because after hours of testing, they just aren’t in the same game, let alone same sport. They will have a separate review. (Summary of that review: Get the DOSS @$70 or spend an extra $100 to get the HK Onyx Studio 5. That extra $100 will easily justify itself after years of listening pleasure!) To get the speakers setup, all speakers were plugged in to AC power. If a speaker had an available firmware update, it was applied. All speakers were connected via Bluetooth to an iPhone XS. I used the Amazon Music app (w/full Amazon Music subscription) to test. I selected specific songs that I know well across a variety of music types. The following is a small sampling of the Artists & Albums. Some albums I listened to in their entirety, some I just chose particular songs. Techmaster PEB – Bassgasm Chris Stapleton – Traveller Donovan – Beat Café Christian McBride – Live at Tonic Pink Floyd – Dark Side Of The Moon Gustav Holst – The Planets Audiolab – Audio Test Tones The first thing I wanted was something that matched my listening preference as noted above. An upside-down bell curve. Strong bass and treble, and a flat midrange. To me, too much lower-midrange causes most music to sound muddy. Too much higher-midrange and it sounds hollow or echo-y. The Bose is definitely last place in the bass frequencies. Its single, smaller downfiring speaker just isn’t up to the task of creating bass you can actually feel (or hear at the really low frequencies). You can tell the Bose unit is making an effort, but it doesn’t have that deep sound that you get from the larger drivers on the HK Onyx units, particularly the Onyx Studio 4 & 5. I did try to cheat a little with the Bose by putting it on a surface that would allow it to act like a bass transducer. Unfortunately for that idea, Bose does a fantastic job of isolating its sound from the surface it’s on, so there’s no buzzing or resonance on any surface. This speaker is not going to vibrate itself off any flat surface. Where the Bose Soundlink Revolve+ shines is because it is a downfiring speaker, it does a much better job dispersing sound evenly throughout a room. The staging of its output just has a certain ‘something’ that is best explained by listening and not with words. Unfortunately, while the overall sound is smooth, it’s missing the low end that I require. Lack of bass response notwithstanding, the Bose most closely resembles the sound of the Onyx 4. Now on to the Harman Kardon Onyx Studio, models 1, 4, and 5. As I noted, the Onyx 1 is for reference. A family member has had it for years and I’ve always been impressed. It was time to see what improvements HK has made to its newer models. The Studio 4 and 5 definitely sound better than the original, but it’s not a HUGE improvement. If they weren’t side by side, most people would be hard pressed to discern a difference. The aural differences between the 4 and 5 are even less. What intrigued me the most between the 4 and 5 was HK’s decision to go from a 2x2 driver setup to a 1x1, respectively. My first thought was that any sound staging would be diminished with the newest model. Surprisingly, there is almost no difference between the two, so “props to HK” for being able to re-engineer the Onyx Studio 5 for better overall sound. If I didn’t have all the speakers side by side, I wouldn’t be able to tell the difference between the 4 & 5. However, ‘they were’ so ‘I could’. HK’s switch to the larger woofer in the 5 makes a notable difference, specifically when testing for sub frequencies. Both in music and using the Audiolabs test album, the 5 was absolutely able to respond down to 40Hz. This is also where the Techmaster PEB album came in to play. The Bose wanted nothing to do with it and didn’t bother to show up to the game. The Onyx Studio 1 at least showed up, but it was the 4 & 5 that actually hit the field to play. The 5 just barely edged out the 4. Again, that single, larger driver in the 5 is what works. The Studio 5 also managed to have better overall staging and ever-so-slightly better vocals and treble. On any albums that have more of a “live” sound, the 5 fared slightly better, giving the vocals more presence in the room. The Bose also did very well, but the vocals weren’t quite as forward on the stage. If classical music is more your thing, it’s a toss up between the Bose and the Onyx Studio 5. Again, the Bose does a fantastic job giving you a full stage of instruments, at the expense of some of them not being quite as crisp or pronounced. You know the individual orchestra pieces are there, but sometimes it sounds like some of them are behind the curtain. Again, it’s really a toss up. Listening to “Holst: The Planets”, there are some very quiet moments that both speakers handle with aplomb. In a perfectly quite environment, I suspect classical aficionados may prefer the Bose for the way it separates the stage, even if it’s only slightly better than the 5. Summary: Reference Graph #2 - This unscientific, subjective graph is how I hear their respective tuning. The Onyx 4 has a relatively flat response curve. Hence a bit more of the midrange that I don’t like. Around 90Hz, the speakers are pretty even. You can see the Bose falls pretty much in line with the Onyx 4 and 5, but seriously lacks the initial bass response, and overcompensates with additional midrange. Thus, as I noted at the beginning, the HK Onyx Studio 5 is the speaker that most closely matches the way I like to hear music and wins the overall award. Now that I’ve determined the speaker that sounds the best to me, let’s discuss the other factors that distinguish these units. Overall Volume / Loudness: Reference Graph #1 This graph is how I perceived their volume at given frequencies. This is a very unscientific way to do this. (Again, it’s all subjective.) I first set all speakers to approximately the same perceived volume using 1000Hz as the frequency to normalize the volume. The volume does not get adjusted for the remainder of this test. Next, I went back and started with 40Hz and stepped up to 16kHz. The graph represents where I perceived an increase or decrease in volume relative to 1000Hz. This is completely unscientific because higher frequencies will seem louder than lower ones. Once in the higher frequencies, its more about which speaker seemed louder than the other at that frequency. Take the graph for what you will. (I’m doing this review for free. I’m not spending the additional time & effort & equipment required to record a channel sweep of each speaker and display the results. *laughing*) Worth noting on this volume graph… There was essentially no perceived volume at 16kHz. And none of the speakers are crystal clear at their max volume. But this could be due to numerous compounded factors: The encoded bitrate of the Audiolabs album that is streaming from Amazon; The usable frequency spectrum handled by the Bluetooth protocol. From this testing, I also believe that once you push Bluetooth past about 80%, the BT itself becomes the primary source of distortion, not the speaker & its amplifier. If I had done a direct line-in using my actual/physical Test CD, that would entirely eliminate any of those possibilities. Again, I didn’t feel it worth additional time & effort. ? - I found it interesting that while the Bose wasn’t as loud at lower volumes (a percentage of total volume adjustment), ultimately the Bose did play louder than the Onyx 5. It would seem that the Onyx ramps up and plateaus faster. The Bose also had a flatter volume response, whereas the Onyx units got a little peaky in some areas. If someone is paying attention, the graph would seem to run counter to my claim that the Bose was overall louder at max volume. Subjectivity at its finest! - Earlier in my testing with the Bose, I found that controlling volume with the VOL+/- on the iPhone, there are 20 steps. However, using the volume buttons on the speaker, there were 5 steps for every 1 of the phone. So the Bose effectively has a volume adjustment of 0-100 when done manually at the speaker. I did not test manual volume control on the HK units. Portability & Aesthetics: - The Bose Soundlink Revolve+ definitely wins in the portability category. It’s definitely the lightest of this bunch and it’s super convenient to just pick it up by the fabric handle and be on your way. It also has the smallest footprint. However, the Bose is going to get dinged a little for its 3ft USB charging cable. 3ft is not a lot when you’re looking to have your speaker plugged in and use it at the same time. That being said, check out someplace like Amazon/Monoprice for longer USB cables to make this less of an issue. - Neither the 4 nor the 5 are particularly portable, as in, “throw it in a backpack and head out for a day trip”. The HK Onyx Studio 4 retains the same general setup since the original. A cup on the top-back to carry it, and two non-detachable legs sticking out the lower back. On the Studio 5, HK changed it up and went to a design that now looks more like a woman’s handbag, having a full handle on top. The Studio 5 is also quite a bit heavier than the 4. The plus side to it being a heavyweight is that it stays where you put it and is less prone to vibrate the surface it’s on. When specifically comparing the Studio 4 to the 5, the 4 seems like it would fall over easier if something knocked it from behind. That’s just an observation and not a likely scenario. - Of the four units, I like the Bose the best for button layout. The Onyx 1 & 4 next. The Onyx 5 is the least favorable for button layout. It hides its buttons on the top-front of the speaker fabric. And the audible feedback of the HK isn’t nearly as intuitive as the Bose. The Bose talks at you; The HKs just play tones (most of the time). - Due to the downfiring, 360° nature of the Bose SoundLink Revolve+, I think if you had high ceilings and hung them like light fixtures, the audio in the room would be amazing! Or if you’re using them outside, hang them on some really tall Shepard’s Hooks. Technically, you could do the same thing with the Onyx Studio 5, but the speaker is much more directional, so you’d probably want to have them in corners firing inward. Serviceability: I’m only calling this out because the original Onyx Studio 1 had both a removable grill so you could see all the speakers, as well as the ability to open up the body and replace any component, including the failed rechargeable battery (which I replaced while reviewing this lineup). The Bose and newer HK Onyx’s are sealed up tight with no apparent way to crack ‘em open. Extra features: - As I noted in the beginning, extra features aren’t really on my radar. I want a speaker that plays my music. The other stuff doesn’t really concern me as much. - The Bose and HKs are able to wirelessly connect to similar units. However, the Onyx Studio 5 is only able to pair up with other Studio 5. It doesn’t have HKConnect technology, so you can’t connect it to any previous Onyx models. As such, it’s also not recognized by the HKConnect app. Reviews for all the speakers have plenty of people complaining about the ability to pair their speaker with the exact same model. It would seem that grass isn’t perfectly green on either side of this fence. - I think both the HK and Bose handle incoming phone calls… Don’t know, didn’t try. - The Bose I received had an available firmware update that went very smooth. I hooked up the speaker to my Windows 10 system and it recognized it without issue. I downloaded Bose’s Windows app and updated the firmware without issue. Looking at HK’s site, neither the 4 nor 5 appeared to have a firmware update. Battery life: I didn’t do any rundown tests. I’m going to keep my speaker on a shelf and/or near AC power, so battery life isn’t a big factor for me. I will say that the Bose clearly speaks its battery capacity when you turn it on. It also speaks the name of exactly it’s connecting to. That’s a nice feature I wish the HK’s had. Price: As of this writing, the HK Onyx Studio 5 currently is the least expensive of this group. And it’s my favorite sounding speaker! That’s a WIN for me! The Onyx Studio 4’s audio quality is right up there in a close 2nd place to the 5, but it’s currently more expensive. And then there’s the Bose which is currently selling for more than $100 over the Onyx Studio 5. Apparently, you are going to pay for the Bose name and portability. And possibly the battery life or other features I didn’t cover. The Bose is nice, but I’ll keep the extra $100 thankyouverymuch! All in all, if you’re not nearly as particular as me, any of these three speakers will treat you well. I’m obviously recommending the HK Onyx Studio 5 because it sounds the best and cost the least. However, if you aren’t nearly as picky and have a concrete spend limit of $100, I’d go with the DOSS Soundbox XL for $70.
We have an original Marpac Dohm (mechanical fan) white noise sound machine, and 2 of the all-electronic Zohne units, which we love. The white noise helps mask noise in our house while our 2 young children nap. The portable Rohm unit has sound very similar to the the Zohne model, at a much lower price. So it works very well. The only con is that while it comes with a USB cord, it doesn't come with a USB AC adapter. While USB ports tend to be ubiquitous these days, if we take this traveling, we will have to use a USB AC adapter from something else to charge this. It would have only cost a few bucks for Marpac to throw in an AC adapter, so I'm disappointed this "Cadillac" brand of white noise machines didn't do that. I didn't knock a star off because of the lack of an adapter, since I knew ahead of time from the description it didn't come with one. It gets a 5 star review though because the unit functions very well.
My office has very thin walls, and the loud conversations and music from neighboring offices can be distracting. This white noise machine is great, overall. The reason I'm only giving 3 stars is it is so hard to get it to turn on. I usually have it plugged in, but whether it is plugged in or not doesn't seem to matter, because I have to press the "on" button multiple times (sometimes a long press, sometimes a short press, trying to "hit" the button at different angles, etc.) to get it to turn on. It usually takes several minutes, pressing the on button at least 15-20 times, before it decides to work. I've had this thing around 3 months now and still can't figure out why it is so finicky. Overall, it is a simple, easy-to-use gadget that blocks noises well when it works. There are 3 different white noise options and they are all pretty good; volume is fine for my needs. I would imagine you'd want something larger if you had a bigger room or needed to block more noise.
I have the Marpac Dohm and use it every night. Lately I have been traveling a lot and was missing the white noise sound in my sleep but I couldn't take the Dohm because some countries I visited where 240V. The Rohm is the perfect solution to imitate the Dohm and even have other options with louder sound as well. I only use mine in the deep white noise mode and with low volume, to make it sound just like the Dohm would, but having more options is always welcomed. Very small size, portable, and usb charging makes it great for travelling. Highly recommended for light sleepers like myself.
Okay this is one of my top 5 baby items. I have the dohm sound machine it was NOT good enough for my baby. If you read the happiest baby on the block and need the LOUD hush noise, does your baby love the blow dryer?? Well this bad boy is it! My baby loved the hair dryer, I could find anything that matched it until this. I has 3 different sounds and nice range of volume!
I have been using this for about a month, the sound is great and I like the options. But a full charge only lasts about 6 hours. Ideally this would last a minimum of 10-12 hours (one nights sleep) though 2 nights worth would be more appropriate. Also, it only comes with a USB cord. I understand that we all have adapters at this point, but it would be nice if an actual wall plug was included.
Either there's an auto shut off that I can't figure out how to change, or the battery doesn't last through the night. I assumed it would last at least a few nights, but it doesn't. So, of course, baby woke up too early. Now we keep it plugged into the wall, but there's an irritating blinking yellow light that indicates charging, maybe. It seems to be charging constantly. It doesn't get as loud as I would like (as loud as our previous unit).
This would be a 5 star review if the battery lasted all night. That said it usually poops out after 6-7 hours max on the loud setting. The speaker is great, nice and loud and the size is very portable (think a set of large coasters stacked up) I use this in the baby's room to drown out my city life road noise it made a huge difference in how long he sleeps for. I would use one myself but I am afraid I would miss work too often if I went to bed with this on! The battery lasts better if the speaker is on lower volumes but we need it on loud at our house. I just keep it plugged in, so problem solved.
My new fave rave gizmo :))) I've had a Marpac Sleepmate for at least 15 yrs, and it's absolutely part of my sleep ritual. I've even packed it on my carry-on bag for trips (and gotten some priceless looks from TSA screeners as they were monitoring my bag through the x-ray/baggage screen..."Uh sir, can you step over here please?"....) So when my girlfriend came over with this little unit telling me I have to try it, I was a bit leery. Having used it both at home and at my office (psychotherapist), I can honestly say I love this thing. The longest sleep I've had with this is 9 hours, and it was still going strong the next morning. I've experienced none of the idiosyncrasies mentioned in other reviews, just clean, clear, effortless white noise :)
Small, efficient, and effective! This little noise machine was an easy addition to our home and travels. It is battery-operated which is rechargeable by micro USB. It has three sound settings of low white noise, high white noise and ocean waves. There are many volume levels so it is easy for you to choose the appropriate level for your situation. It comes with a clip so you can clip it to a bar on your stroller or it sits nicely on a seat in the car. I have not tested how long the battery lasts, as we usually have it plugged in. It can get decently loud on the highest volume level, but you probably won't need it to be that high. All in all this is a great no-frills, portable, sound machine.
I have been using this day and night for the past 2 years. It's amazing. First of all, I keep it plugged all the time, but when I ended up using it without power lasted 12 hours! so I think that those that say that it doesn't last long it is maybe because they haven't recharged it long enough. we were at a wedding in some cabins, power went out at night, the other families with kids were up in the night because their regular sound machine turned off, we slept and didn't realize power was out. I just absolutely love this thing.
Edited to say the charging cable went out after just a few months. And it doesn’t look like I can buy just the cable. I don’t really want to buy a whole new one! We purchased this for our 5 mo old to use during naps at daycare, but we are keeping it at home since we love it so much and are moving his Dohm to daycare. We like this one better for several reasons: it's so small yet so mighty, can be really soft or super loud, has three sound options, you can lock the controls so baby can't mess with it, it's portable, and it has a rechargeable battery so it doesn't have to be plugged in. The only thing I don't like is the charging cable is a USB. Doesn't come with an outlet adapter. But that's not a huge issue. Overall, we love it!
Love this sound machine - in fact, I bought a second one, but there are a couple (random) annoyances that keep me from giving it a five star. First, to turn it on/off the button has to be hard-pressed for (what seems) a long time .. longer than I want to spend time turning on/off when I have a baby to care for! Also, the power button light blinks pretty bright .. not sure why they made this device that's suppose to be for sleep gave a light that blinks so bright?! I do, however, like that it's small, able to get loud and sounds good!
Arrived on time with a few other items that I purchased and it worked great!
Works well, and is at a good price
Nice unit, good build, charges great. Very good price on such a quality built unit, second time buyer on this product, first one worked great until dowsed in coffee(my bad).
Shipping speed is on point! And looks like it'll work on my mod batteries I'll find out tomorrow morning.
Works great! Nothing else to say...
You can charged your rechargeable battery like you AA and AAA RECHARGEABLE batteries...good use for then too
Charges my vape batteriesu200b fast
For the price, it's awesome!
It charges a bit slower than i expected, but overall is acceptable.
3 Stars. It takes a bit of fudging with it to make a proper connection with the batteries for them to start charging. I bought this item because it was one of the chargers that would charge my samsung rechargeable batteries.
Great for its price! Works on many types of batteries and charges in a great amount of time.
Works great, original!
I mean, how much is there to say about it? I like the fact that it - although this isn't much of a selling point, most do - handles both my 18650s and my 18350s. It's smart enough to tell if you've inadvertently inserted a battery polarity-reversed, so it'll save you from burning down the whole neighborhood by being in a hurry. It charges my batteries quicker than my previous charger, and has a useful, if rather general, 3-light indicator to let the user know how far an inserted battery is from full-charge. I've had mine for a couple of months now, and no complaints. Recommended.
works well
This product is excellent it is truly what it claims to be I love it I'm so glad I purchased this product here
Works great as far as I can tell!
Works as Described, No complaints or issues.
Seriously, this has made my packing list one item lighter. I used to bring separate chargers for my lithium batteries (18650 and 14500) and my NiMh batteries (AA and AAA), but finally there's a two-lane charger that'll do ALL OF IT. My one complaint? The metal sliders are hard to move. A tiny application of lubricant solved this problem, which makes me wonder why it's not part of the manufacturing process. That's it, though, it functions perfectly and the sliders now move with little effort.
Charger works well. Battery sizes from China vary greatly making it necessary to play with batteries to get them to charge.
Awesome product!
Works really well. Fast
damn good charger
Very nice and work very good
CHARGER WORKS
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