This is the best headset.  Great sound quality and volume, callers hear me well, battery charge lasts a LONG time, and best of all it is the only headset I have used that doesn't accidently dial my phone when it's in my pocket.  It prevents accidental pocket dialing because the boom mic needs to be unfolded to make calls.  Also, when someone calls all you have to do is unfold the mic and put the headset on your ear.  Do that and the headset will answer the call after a couple of seconds.