Bluetooth version V5.3

Transmission distance: 10m

Horn diameter: 52mm

Parameter:4Ω 5W

Number of diaphragms: 1 * 40mm

Frequency range : 70-16000 Hz.

Sensitivity: 88dB.

Charging port: type-c

Input parameter :DC5V-1A

Battery size: 18650

Capacity 1200mAh

Play time 80% 8H

Charging time:3-4H

Function:BT/U-disk/TF/take photo

Size 96 * 48 * 78m