Sound quality is good. The range is a little short
345087
This thing is a work horse. It has survived countless hot showers and high falls. Sound quality is good. The range is a little short, but considering what I use it for that isn't an issue.
2134469
The sound quality  is good, but returned because it was losing connection after a little over 10 ft. The reason I purchased it was because it advertise a range of 60ft.
2505482
Fits well, sound quality good but not that great. Range short about 1ft beyond that static.
2408659
Small, good range and functions, good kit and accessories, but sound quality is average. For the price it's ok, for the looks and style, its great.
779678
Sound quality is good, mid range is good, but for me it doesn't have enough bass.
1128823
The sound, look and portability of the system are great.  However, the range is lacking compared to other bluetooth speakers I've used.  I'm using it with my iphone and laptop, and whenever I'm just a little out of direct line-of-sight it breaks up.
1283115
The earphone quality is good and the sound is good.  However, the range is more limited than I would like.  Good earphones for the price.  The charge last a long time.
864627
It is tiny so don't expect a really big sound but it's convenient to take places and the sound quality is good.
1574419
To be fair, the sound quality on these phones is excellent.  But sound quality alone does not a great pair of earphones make.  These are constructed with the intent that the user wrap the individual cords around each ear before inserting the bud, which can be a bit awkward at first.  This does, however, tend to ensure that the buds stay in relatively well.  This system, while odd, would be fine if there was enough extra length on the cableas it is, the cable is too short and would benefit from about an extra 6"-12" for more comfortable access to the output device.
If you're looking for great sound quality, these are a good choice, but for the money there are much better options that don't require the same sort of awkward shenanigans to wear properly.
2882396
I paired this with a $10 "Headphone Adapter with Remote & Mic Extension Cable for apple iPhone" to give me volume control on the cable.  I mounted the speakers to the straps on my HD 1/2 helmet (see pic).  They sit a little low on my ears, but the sound quality is good.  Not the greatest quality in high wind\speed, but I like the convenience of mounted headphones.
3338517
Good sound quality. Bluetooth signal is weak and slightly glitchy from time to time. Also won't connect sometimes. This is why they get 3 stars. Ear-fit is excellent. Battery life good so far. I've only had them for a week but I like them. I got them for around $10 so I'm not sure I'd be as happy with them at the regular price.
178833
I bought SB572. Price and sound quality is good but reach is very very short.
2182501
Very good sound.  I have only 2 areas that need improvement:

1. Length - The distance between the 2 ear buds needs to be longer.
2. The controls are to close to the right ear bud.

With the short cord, the controls are pulled behind my head where it is very hard to reach.

Giving it a 4 star because of the sound quality and low price.
3634881
Easy to hookup.  Good sound quality for the price.
4227763
Range needs tweaking some, Works great with a phone or mp3 player
4018266
The audio quality is good no distortion. The biggest issue I have is that it really isn't that loud.
3742627
This device is very small compact and easy to set up. I bought this item because the one I have (MPOW) only has a 33 feet range and this one is advertised as a 50 foot range. My home theater system is centrally located and controls music speakers in my game room and the outside patio areas. I wanted to control the songs and volume through my phone while in or around those areas. As luck would have it, I was only a few feet short of being able to do that ! I found the above item at a reasonable cost but was sadly disappointed when I discovered its actual range in my home was less than my existing adapter. The sound quality appeared to be OK but not Great. I hope they can rectify this problem.