Jabra BT2050 Bluetooth Headset (Black) Simple functionality with separate on/off button Fits right in your ear with comfortable gel earpiece; optional earhook for secure fit Optimized sound quality with Bluetooth 2.0+EDR; compatible with Headset and Handsfree profiles Up to 4 hours of talk time, up to 180 hours of standby time Up to 4 hours of talk time, up to 180 hours of standby time