【New】Driving & Calling Bluetooth Headset USB Rechargeable This is a single-ear headset. Suitable for driving, etc. It's safe because you can answer calls with one button. ◯ Contents Headset body Charging microUSB cable Foreign language instruction manual ◯ Specifications Continuous playback time: Approximately 15 hours (varies depending on volume) Continuous talk time: Approximately 20 hours Continuous standby time: Approximately 60 days (when not making calls or playing music) Charging time: Approximately 2 hours Transmission distance: 10 meters (without obstruction)