I needed some wireless headphones for jogging as I hate the wires jumping about. Was torn between these and another pair, but went for these for the battery life. Excellent headphones, I've not got the best hearing so can't really give a detailed view on the sound, I personally don't have an issue with the sound at all though. There are buttons on the right for play/pause and take call (I turned off the use headphones for calls option off on my phone), an on/off switch, and a little "dial" for skipping tracks back and forth, which also doubles as volume if you hold it instead of flicking it.
Connection is good, connects to my Nexus 4 very quickly and never had an issue, just turn on, hear two beeps, and connected.
Battery life seems good, I used them for a run yesterday and forgot to plug them in to charge up when I picked them up today, and used them for 2 hours today no problem (the other pair I was looking at had a battery life of 3 hours), I think chances are my phone battery will die before these do.
Hope this has helped a bit.