Bluetooth version:V5.0
Frequency range:2.4GHz-2.48GHz
Transmitted power:Class 2
Working Range:Around 10m (open space Max.20m)
Charging Voltage:5V 0.5A
Operating voltage:3.7V
Standby current:360H
Charging time:10mW
Output Frequeney:20Hz-20KHz
Batter: Built-in lithium battery 400mA
Working Temperatuer:-10~+55°C
Packing list:
earphone * 1
Audio cable * 1
USB cable * 1
manual * 1