1.BT Version:V5.3

2.Speaker Diameter:φ40mm

3.Frequency Response:20Hz-20KHz

4.Sensitivity:92dB

5.Size:φ52*42.5mm

6.Speaker Impedance:4Ω

7.Output Power:3W

8.Battery Capacity:680mAh

9.Playing Time:4H

10.Charging Type:Micro

11.Transmission Distance: > 10 meters

12.Charging Time: 2-3H