patible with Bluetooth-enabled devices such as mobile phones,PDAs and laptops 2.Headset and handsfree profiles supported 3.Ergonomic, reversible earhook with improved back housing design to form fit to your ear 4.Up to 20 meters(66 feet) of operating range 5.Optional colors: black,red,white Specifications : 1.Bluetooth Version 2.0+EDR specifications, compatible with Bluetooth Versions 1.2 and 1.1 2.Talk Time: up to 6 hours 3.Standby Time: up to 150 hours 4.weight:16g(0.56oz) 5.Range: up to 20 meters(66 feet) 6.Battery:150 mA 3.7 V,Lithium Polymer Battery 7.Charge Time:2.5 hours