Bluetooth Version:V4.2.
Play Mode: Bluetooth/TF CARD/AUX.
Speaker Full Range Unit: 45mm 4Q.
Speaker Power: RMS 5W*2.
Power Output:5W.
Charging Voltage 5V/1A.
Battery Capacity:2000mAh/3.7V.
Passive Bass:58mm.
Working Time: 8-10 Hours.
Charging Time: About 4 Hours.
Bluetooth Transmission Distance:10m-15m.