Function: Bluetooth,microSD, AUX IN Output power(RMS): 10W*2 Power: DC 5V/2A Battery: 7.4V/2200mAh Speaker size: 3"*2 Product Size: L225*H125*D120 MM Gift Box Size（Four-color printing）: 280*175*186 MM Carton Size: 578*368*400 MM Package: 8 sets/carton Parts：Audio line ,USB charging line 2840 sets/20'FCL 5880 sets/40'GP 6640 sets/40'HQ Weight： N.W: 2.2 kg Bluetooth Ver：V4.2 Use time： VOL 50% ≥ 5hours Charging time： 4~5 hours