Up to approximately 10 hours talk time or up to approximately 200 hours standby time Reversible earhook Intuitive, easy to use controls 2 volume buttons Call button to handle incoming and outgoing calls 2. 28 in. X 1. 06 in. (2. 09 in. Including earhook) x 0. 87 in. 0. 55 ounces 140 mAh battery Charge time is < 1 hour EMU connector Bluetooth Class 2 offers a wireless connection up to 30 feet Bluetooth 1. 2 offers better call quality with less interference and faster connections