Overview: Bluetooth Specifications: Bluetooth 2.0 Battery type: Built-in rechargeable Lithium battery (200 m Ah) Operating Voltage: 3.7 Vcharge time: 4 hoursstandby time: up to 45 days Operating current: 3 m Ah Standby Current: 0.2 m Ahcharge time recommended before first use: 12 hours Specification: Weight Approx:95g Size Approx:11.7 x 6 x 1.8