Bluetooth Handsfree ~YesnBluetooth Version ~Bluetooth V3.0Operating Range<10mTotal Power6WChannels2.0InterfaceMicro USB / TF card , 3.5mmMicrophone NoSNR60dBSensitivity500mVFrequency Response70Hz~18kHzImpedance6ohmApplicable ProductsIPHONE 5S , PS3 , IPHONE 5C , IPHONE 5 , IPHONE 4 , IPHONE 4S , IPHONE 3GS , IPOD , IPADRadio TunerNoSupports Card TypeMicroSD (TF)PowerBuilt-in Battery Capacity1000mAhBattery TypeLi-ion batteryTalk Time6 hoursMusic Play Time4 HourPower SupplyDC 5V / 1000mA