Quality of sound was okay but some distortion at high frequencies.

Great sound, robust and very comfortable in-ear for extended periods. Cord is a little long, but with some finessing sits well over all clothing.

Overall these headphones do the job. The sound is great no doubt but quality was definitely not in mind. The material is cheap and as many others have stated, the on/off button will likely pop off (you can still find a way to turn them on). The cable is flat and wont tangle.

I'm on my second pair of Sony Bluetooth headphones now. My last pair was very expensive which lasted less than 6 months before packing up so I write this with caution. I decided not to spend as much money this time. As with all Sony products the sound is very good.

The look; The sound; The bass; The price

The microphone strength

Sony's new MDR-XB50BS Extra Bass Sports Wireless in-ear headphone is worth considering for a few reasons: Not only is it relatively inexpensive at around $60 online (£60 or AU$130), but just as importantly it fits well and sounds good, particularly if you listen to bass-heavy music.

It's got some small downsides, but the reasonably priced Sony MDR-XB50BS is a step up in sound from a lot of inexpensive wireless sports headphones.

The Sony MDR-XB50BS is affordably priced, sweat-resistant, sounds decent and fits well (it's easy to get a tight seal); Battery life is good at 8.5 hours and the headphone has strong bass performance.

Not the greatest-looking wireless sports headphone; performed only OK as a headset; no protective case.

The Sony MDR-XB50BS is one of the best activity-oriented in-ear headphones for its price. Bass performance is particularly great, although mids are somewhat compromised. I am not a great fan of its design either, but the splash resistance helps during workout sessions.

Very good low frequency performance; Good clarity of audio; Water- and splash-resistant

Compromised mids; Awkward design

I've have tried many top brands in the past but this one has a good and loud bass sound that is also a perfect fit inside my ears.I can wear this all day long!

My daughter loves these headphones as her first pair.

At first these earphones would hurt my ears when i would use them for a long period of time. Now they don't bother me at all. The sound is really good, the bass is nice & also the built in mic works good for calls. I prefer Sony earphones over almost any brand.