Bluetooth Version: 4.2

Built in Aux-in, FM radio, Bluetooth, SD&USB slot, 

3D Stereo Mode shift and LED display function.

Output Power: 5Watts

Play distance: 10meters

Frequency: 100Hz~18KHz

Impedance: 4ohm, 5watts

Receiving sensitivity: batter than-82dBm

Battery: 1200MAH

Charging Voltage: 3.7V~4.2V

Play time: around 2hours

Product size: 17.3x10.4x17.8cm