HBS‎-900 Tone Infinim Wireless Stereo Headset combine Harman Kardon‎'‎s signature sound with Bluetooth 3.0 streaming from your compatible mobile devices‎,‎ including support for the A2DP‎,‎ AVRCP‎,‎ HFP‎,‎ and HSP Bluetooth profiles‎.‎ Each side of the headset features a retractable ear bud which helps prevent tangles and maintain the sleek overall form factor of the device‎.‎ Dedicated buttons for play/pause and answer/hang up calls enable easy control over your media and contacts‎.‎ The unit‎'‎s ‎"‎Jog‎"‎ button interface system provides one‎-touch volume and music control‎.‎ The built‎-in rechargeable battery provides up to 17 hours of talk time‎,‎ up to 14 hours of music playback time‎,‎ and up to 23 days of standby time‎.‎