Love the fit and finish of the headphones and the waterproof feature, though the rubbery texture does get caught on my neck when turning side to side, which made me use the headphones with the corded hanging under my chin. But what really annoyed me with this product was the lack-lustre battery life and unreliable charging performance. In the gym when I had the headphones full-blast, they probably lasted just over 2 sessions so I would always charge every two visits, and this eventually forced me to charge after every gym session to ensure I don't run out of battery towards the end of my second session. What was worse when I started using this at work. I currently work in a quiet environment so I often have the volume at what would be 25% level or so, but the headphones would last 5 hours at most. I don't usually use wireless headphones in the office but changing to a phone with no headphone jack had forced me to use them as I don't often carry an adapter with me. Most annoying though was the unreliable charging. I can't charge the headphones unless they're directly plugged into a wall outlet. Doesn't work through a power bank nor laptop/PC. The red charging light would turn on for 5 seconds then switch off. That said, this was using a generic micro USB cable, not the included one. But there shouldn't be any different in these cables, right? I think I've misplaced my original Sony micro USB cable or it's just mixed in with all my other cables, as there was no distinguishing feature on them (no Sony logo). Just seems a bit silly to require a specific, universal cable for charging. Because of these battery/charging issues, I cannot recommend these headphones (especially at the original price), nor any other bluetooth headphones Sony will release. I love Sony and have used their products for a long time but this has frustrated me to no end; considering wireless headphones are meant to be portable usable everywhere, these issues have confined me to using them just for the gym, where I don't have to worry about them lasting for less than 2 hours. I don't think I'll purchase Sony headphones again.

Just bought these superb bluetooth earphones. You can't deafen yourself on full volume HOWEVER due to the design, you cut out all sound around you due to the comfortable ear design. The buds stay in place on in your ear once you 'twist' them in and feel secure and comfortable. The miniature control button on the right ear is multi function so pressing 1,2,3 etc in a row produces pause, play, forward etc. Simple once learned.

I bought this product a couple weeks back and I ant be happier!!!