he phone.Supports Bluetooth Headset musicSupports music songSupport the last number redialVoice reporting function.Bluetooth Headset operation voice prompt function.Supports Micro message, vehicle navigation, QQ voice software.Conversation 8-10 hours; listening to music 10-12h, and 150 hours of standby time.Certificates: CE,ROHS,FC,ISOTransmission distance: 10mFrequency Response: 20Hz-20KHzCharging Interface: Micro USBIP Grade: IP67?