I bought these to try out the capacity of Bluetooth headsets. My main use is to listen to music but I don't call that much. However, people seemed to not be hearing me well when I used the microphone on the headset on the phone. Soundwise, I have no complaints and I always trust Sony to provide the best sound quality, with defined sound for a good price! The battery life is far good for me, providing I listen to music all day : I charge it at night and it's good to go in the morning. I would complain about one thing though : the headset is a little heavy, and the battery seems misplaced on the headset. Also, the earbuds don't attach to each other so they could fall off of my neck easily when I'm not listening.

goes out of range in 10 meters, randomly turns itself off, sometimes when i turn it on it would not connect to the device it was already paired, I was not able to connect to my laptop with headset mode only with audio sinc, battery life is good, sound quality is good

It's a very good headphone, loud but not with sound leak, good battery life and best of all no annoying cable!