Great quality, battery life, and volume level
593854
This is my 3rd purchased OontZ Angle. I was looking for a Bluetooth speaker for home use that wasn't too expensive and stumbled upon OontZ. I've been so pleased with the sound quality, battery life, and volume levels that I've bought 2 more as gifts! I love the OontZ and only wish the original I bought for myself would have been the 3rd generation!
521141
Great sound.  Great battery life.  Great blu tooth range.
913718
This product has been amazing. It elicits excellent sound quality, and the wireless bluetooth feature has worked flawlessly. Furthermore, the battery life is formidable; I played music during work all week and never had to recharge until the weekend. Finally, they are very comfortable and appear quite sturdy. After wearing them all week, they did not irritate me in any way. I did extensive research on bluetooth over-ear headphones before buying this, and I can confidently say that this is one of the best on the market right now. Highly recommended.
4695437
This is a great quality set of headphones - second pair that I've ordered.  First pair was the T3+, and have been using them for well over a year without any trouble.  Build quality is tremendous - very durable and all the materials last even with heavy daily usage.  Great battery life, easy to set up/pair and zero lag in streaming Bluetooth audio at any bitrate.  The first set of Bluedio headphones I bought were the T2 Hurricane, and those produced great sound quality (though nothing in comparison to the T3/T3+), and even better battery life than the T3, but the headband eventually broke after about a year of heavy usage.  I don't think that is even a possibility with the T3 - the build quality and strength is incredible.  They are quite comfortable as well, but will wear heavy on the ears due to the grip of the earmuffs from the headband.  You won't have to worry about these falling off easily.  These are a cut above the overall quality of most headphones three or four times more expensive!
2624212
Wow!
I owned the legacy 3M work tunes for years and had the option to listen o radio or run a long 3.5mm cable from my device to my set.

With this version, you connect to your device via Bluetooth(tm) and work away. Nothing better than listening to a podcast while you are fixing something.

The good:
1) Great volume level: You don't have to crank your device to hear. I ran the snowblower the other day and had no trouble listening.
2) Great hearing protection: by itself, this is a great set of earmuffs
3) Great battery life: I have charged once and used for over six hours now.
4) Great initial quality: As mentioned before, I ran a snowblower, and these got wet and icy but didn't miss a beat.
5) Status indicator sound: Each time you power it on, it lets you know the battery level. This keeps you in the know.

The bad:
1) No batteries: I like the ability to juice up instantly if my batteries run out. This device has a rechargeable pack which I am not a fan of. This is more of a preference than a bad
2) Non-intuitive interface: I had to read the instructions. I don't read instructions, yet I had to in order to figure out the programming (press button twice for Bluetooth connection mode).
3) Power button: I understand the need to avoid accidentally turning a device on or off, but you have to hold the button down a while to get your power function to do what you want it to do. I also have had it randomly turn back on.

Five stars because in spite of the things I don't like, its a great set of hearing protection, a great set of headphones, and another great product from 3M.
1695376
The battery life on this is amazing.  I charged it up before vacation and used it on a 6 hour car trip, then for 2 weeks while on vacation every day before I had to charge it up again for the drive home.  The volume is great - it gets really loud and doesn't sound distorted.  I can connect to my phone with the aux cord or with bluetooth and both work perfectly.  I really like the size and the case that comes with it.
4086352
Excellent quality and power. Great battery life.
169426
I've had these for about two months now, and continue to be amazed at the quality. I use them primarily with my iPhone 5s, and recently with Apple watch. Battery life is outstanding, the fit is great, and sound is as good as I need it to be. I am not an audiophile, but am a professional musician, and I've found these to be great for the price. I will say that I primarily use them for audiobooks and talk radio, though. Phone calls work great on them as well, and I have had no trouble with people hearing me. I use them to workout, in bed, while mowing, etc.  The extra hooks included are very helpful for working out, and I have had no trouble keeping them in place, even with intense plyo/crosstraining  workouts. My brother, mom, dad, wife, and friend have all gotten a pair as well and love them, too. This is about the most glowing review I've ever written, but these things are just a steal for the price. I feel like I need to clarify that I have no affiliation with the company!  I say go for it!
24787
the sound quality and the battery life is great which is all you can ask from a Bluetooth device. I haven't yet tested its waterproofness or durability but it seems durable
656310
I'm not a frequent reviewer, but I felt compelled to review this item since few people seem to know about it.

* Great Battery Life

* Excellent form factor (easy to clip anywhere)

* Amazing Sound Quality ( I use this with a pair of UltimateEars TripleFis and it's actually hard to tell that they're not corded ).

I use this in two locations primarily.  First, at work.  I work alone in a small, enclosed, very loud environment that requires hearing protection.  I occasionally have to do mundane work where it's alright to leave hulu playing in the background.  Well, now I can hear it anywhere in the lab without having to turn the volume way up.

Also, it's really useful at the gym.  I sync it to my ipad, which is resting on the elliptical. Then I can have my own private TV show (hulu/itunes/whatever), without worrying about catching the cord on anything!

I've tried similar products as well. I've tried the iTech Clip, which worked very well but had relatively poor sound quality and is difficult to find in the U.S. (probably better in newer models), as well as the Bluetrek Stereo Duo (excellent sound quality, but poor battery life and bad form factor (no clip!!)).
1787565
This headphone has excellent battery life. Sound quality is very good, the microphone is very sensitive and I get no complaints from the calling party about sound quality. I wish the volume buttons and fwd - next buttons could have been redesigned to have volume on one side of the headset and the fwd-next on the other side of the headset.
3637890
I've had a number of Bluetooth earbuds over the years, and they all suffered from 3 issues: Poor battery life,  sub-par sound quality, and uncomfortable.  I am happy to say that this is the first set that I've owned that overcomes all these 3 issues.  It has very good battery life and Bluetooth connectivity. I use them at night to listen to streaming radio, and typically are on 1-2 hours. I've used them for 5 days w/o having to charge (8+ hours).  The second great thing is that they are comfortable. I use one in one ear during bedtime.  and still the quality of sound is very good. The bass is good, the mids are good, the high-end a little flat, but still overall very goodt for listening to either music or talk.  I would recommend these to anyone who wants comfort and long battery life with good sound.
2013142
The sound qualityand volume is excellent and the controls are easy to use battery life is excellent. Everything i hoped for and more than worth it for the money!
2203204
Max volume to low for public environments, great battery life and great connectivity. Differing opinions on mic ability from listeners.
1212793
This thing is sweet. Battery life is really really really good. I'm not thrilled with the bluetooth range, it seems not quite as long as it boasts, but it's still good. The controls are robust on the unit itself, which is nice and allows full control of your music from your phone or the speaker. The sound quality is good. I perused Best Buy's BT speaker aisle shortly after receiving this unit and i'm please with what I got for the money I paid. It's a stellar value.
2277911
I always buy my products for full price and never accept discounted products for reviews. My rating criteria is as follows. If the product works as is advertised and the quality is in line with the price then I give it five stars tentatively, then deduct stars for usability.

Quality:
This seems like a high-quality device.  I've had it since May 2015 and so far there have been no quality concerns.  I also use a right-angle adapter for the 3.5mm input jack; if I had one improvment it would be to make that a right angle piece from day one.

Pairing:
The actual pairing device was easy, its the same process as pairing any other bluetooth device.

We have this paired to two iPhones, and just like any bluetooth device, it can only be paired with one at any given time.  So if my wife and daughter both get in the vehicle, only one can play their music through this device at any given time.  As far as I know, that's just the way bluetooth works.

The pairing seems relatively permanent, that is to say I haven't had to re-pair either device, which is good. Once paired, things seem to stay paired.

Sound quality:
We've used Auxilary cables, FM transmitters and this.  For the people who use this vehicle, sound quality isn't really a huge concern.  Ease of use is much more important.  This is easier than either, because it seems we just couldn't find a great spot on the FM dial for consistent sound.  We all like to crank it up, and this is clear enough to do that.  I have a higher threshold for sound quality, and I am satisfied with this device.

Functionality:
The buttons do as they are supposed to do--forward songs, pause, etc.  The phone functionality works well too.  In fact, I like it a lot because of the magnetic mount.  You can grab the mic since it is just attached magnetically and talk into it for improved sound if needed, but most of the time it picks up voices well enough that isn't needed.

Another nit pick would be to have an "off" button.  If you are in a car with no one who has a paried phone, the device just blinks non-stop at you in pairing mode.  So I just make a habit of unplugging it from the 12v source  in that case.  Just reading through other reviews and comparing this to other devices, I see that some others do make a version like this with a battery.  I don't think that is necessary, and in fact the lack of a battery is one reason I chose this one.  But just keep that in mind and understand this product doestn't have that.

Also, due to the "no off button" issue, in our case to listen to this the radio needs to be on "aux", but the phone stays connected no matter what.  So if you are then listening to the FM radio and a call comes in, your phone may try to route the call through this handsfree device, in which case you wouldn't hear anything since your radio is on FM instead of AUX as source input. Again, this isn't a flaw in this device; its just how this system works but it might be mitigated by an off-button.

Misc:
The  Cigarette lighter adapter/12V source that is included is awesome.  It has three ports, ranging from 2.4a to 1a and looks great.  This means you can charge two devices while also running this device.

The length of cord is going to be an issue for people because the total distance between the USB cord end and the 3.5 input end is probably around a foot, so if your 12 volt input is two feet away from where you plug the 3.5mm jack into, you will need an extender of some kind.  I'm not deducting anything for that, since there is no way to solve this issue.  If you include longer cords, then it looks cluttered, the cords get tangled and it increases the change that they catch on something.  I think the cord length is fine but be on notice that you may need an extender.

Finally, the value is very good.  The price is actually inexpensive, so much so that it actually worried me but the quality is fine so far.  It does what it is supposed to do and I haven't seen any problems so far, so 5 stars.
3341769
Very easy to use, connected to Bluetooth first time, and every time.  Battery life is amazing.  I use them at work to listen to YouTube from my phone.  They last almost three, full, 8-hour days.  Recharging time is about 20 minutes.

Comfort: 9/10 - I wasn't very used to ear-bud headphones, and at first they hurt my ears.  I moved to a different size, and it improved greatly.

Mobility: 9/10 - Running is just fine.  They don't fall out, but can loosen some.  I think this has to do with the size of the earbuds as well.  You can choose from three different sizes.

Overall Design: 8/10 - Slick cord and boxy ends are the only drawbacks.  Cord length is just right, and with normal use, durability has not been an issue.  Also, no issues with suction in ears.

Sound Quality: 10/10 - Although audiophiles may say that it doesn't compare to Bose or whatever, I've found the music and call quality to be exceptional.  The microphone works well, too, even when a little beside the neck, instead of beside the chin.  This was the most pleasant surprise from the device.

Final Verdict: 9.99/10 - The sound quality makes up for any small imperfections in design or fit.  The customization available with the multiple earbuds make it adjustable for different users.  Would definitely recommend.