Main details:

Bluetooth Version: 4.1V
Housing: Aluminium housing
Polymer battery: 3.7V/4000 mA
Speaker unit: 40mm 4Ω/3W
Frequency Response: 150Hz-18K Hz
Sensitivity: 90dB+/-3 Db
Output power: 5W*2 THD+N＜10% (1 Khz/0 Db)
Working time: 8-10 H
LED Working: 18H
LED lighting