... ,comfortable for wearing, excellent performance.4.Two kinds of wearing way: (1). Super light hook to ... very comfortable and no loose,especially suitable for the person wearing glasses.5.Crystal clear and high quality ... at lost pairing situation more than 20 minutes, the headset will turn off automatically to save power ... .8.Voice-dialing,re-dialing,refusal of incoming call function.9.CE,FCC,BQB ...