<ul><li>Brand: OEM</li><li>Color: 5 color</li><li>Bluetooth version: V3.0+EDR Bluetooth</li><li>Transmission distance: 10 meters</li><li>Use time: 4 hours</li><li>Standby time: 120 hours</li><li>Battery: 250mAh rechargeable lithium battery</li><li>Weight: 330g</li><li>Function: to adjust the volume, switch songs, answer incoming calls, reject a call, hang up the phone, Bluetooth play, hands-free calls, telephone replay, Bluetooth back even, voice prompts, power display, FM, TF, EQ</li></ul>