... library without missing a call 1.High-quality stereo sound2.Easily access your mobile device's music ... PDAs, laptops, MP3/4/5 players. 5.Supports Bluetooth V2.1 and EDR6.Supported profiles: Headset Profile 1.1, ... Hand-free Profile 1.5, Advanced Audio Distribution Profile (A2DP) 1.0 ... 210 hours,Charge Time: 2 hours stereo bluetooth headset