Specifications : 1. Bluetooth Version 2.0+EDR specifications, compatible with Bluetooth Versions 1.2 and 1.1 2. Talk Time : Up to 6 hours 3. Standby Time : Up to 150 hours 4. Weight: 8g 5. Range : 10 meters 6. Battery : 80 mA 3.7 V, Lithium Polymer Battery 7. Charge Time : 2-3 hours dimensions : 55  18  10 mm price :8$