Cardo Systems SCALA600 Bluetooth Headset General Talk time: up to 10 hours Standby time: 240 hours Wireless range: up to 33 ft (10 m)Weight: 0.41 oz (11.6 gr)Battery type: rechargeable Li-PoMini-USB charging port for charging via a USB charging cable Among the world's smallest and lightest BT headsets Voice control, Voice command, Muting, Redial, Call reject, Conference call, Toggling between calls Talk time: up to 19.5 hours - Standby time: 1 week Compatible with Bluetooth Capable Phones