Inhouse product
2.Support QR code receipt voice broadcast function,so you do not have to look at your phone
3.Adopt independent volume knob design,which makes the adjustment more freely
Specifications:
Size:60*45*142mm
Bluetooth version:5.0
Input:5V 2A
Power :3W
S/N ratio:≥85dB
Distortion:<2%
Frequency response :150Hz-20Khz
Speaker:4 Ω 3W
Battery:3.7V 18650 cell
Charging time:about 4 hours