Main details:

Bluetooth Version: 4.1V
Housing: Metal housing
Input Voltage: DC-5V
Output power: 3W*1 THD+N＜10% (1 Khz/0 Db)
Polymer battery: 3.7V/800 Ma
Speaker unit: 40mm 4Ω/3W
Frequency Response: 120Hz-20K Hz
Sensitivity: 90Db+/-3 Db
Working time: 6H
Standby time: 250H
Size: 65*37*86mm
Weight:193g