Color: Blue, Beige(Optional)
Charging Type: USB charging
Maximal Sound Output: 118dB ± 4dB
Frequency Range: 400Hz-3800Hz
Equivalent Input Noise Level: ≤ 30dB
Input Voltage: AC110-220V
Output Voltage: DC5V
Rated Power Supply Current Consumption: ≤ 2mA
The power adapter and the main unit have a certain amount of heat during the charging process, which is normal.
Charge for at least 4 hours at the first time, and then use out completely . After three consecutive times, the battery can be used optimally.
bluetooth Open Method:
After booting, press and hold the M button for about 3 seconds to hear a very clear sound, then the indicator light is blue that means the bluetooth function is turned on.