Specifications:Color: BlackMaterial Type:PlasticVersion: V2.0Item Type:Bluetooth Car KitItem Size:98*45*22.5mmFrequency: 2.4GHZReceiving Range: 0-10metersTalking Range of the hands-free Mic: 0-1metersCharging voltage: DC 5VBattery: 300mA Li-ion Battery(not include)Operating temperature: -10~70 degreeFeatures:1. Support voice reporting function2. Support MIC mute function3. Answer / end / redial function4. Support A2DP， can play mobile music， and full-featured Bluetooth hands-on control5. Support three voice Chinese， English， Spanish.6. Built-in high sensitivity microphone and powerful speaker， ensure call quality on both sides7. Built-in rechargeable lithium-ion battery8. Support USB interface software update feature9. boot automatically connect10. Support pairing two phonesPackage include:1 x Bluetooth Hands Free1 x USB Cable1 x Car Charger