Bluetooth version V5.3

Transmission distance :10m

Horn diameter 52mm

Parameter four ohms and five watts

Number of diaphragms 2

Frequency range :80-18000 Hz

Sensitivity : 88dB.

Charging port type-c

Input parameter DC5V-1A

Battery size: 18650

Capacity: 1500mAh

Play time: 80% 8-9h

Charging time :3-4

Size 86 * 87.3 * 250 mm

Function:BT/U-Disk/TF

Water proofe:IPX4