Portable, Ultra-Light Design, Easy To Carry, Bluetooth 4.1 Version, Efficient Transmission Speed and Superior Compatibility, Multi-Point Pairing Which Allows You To Connect 2 Mobile Phones Simultaneously, Dual-Mode Bluetooth V4.1, Ultra-Low Power ConsumptionBluetooth Frequency: 2.4 GHzSupport Agreement: A2dp1.3/Hfp1.6/Hsp1.2/Avrcp1.6/D11.3Bluetooth Transmission Distance: 10 MetersPlaying/Talking Time: 5-6 HoursStandby Time: 120 HoursBattery Capacity: 60mAhSupport Incoming Number CallingSupport 1 Connect 2 Function, Bluetooth Can Be Connected To Two Mobile Phones