Bluetooth version V5.3

Transmission distance :10m

Horn diameter: 50mm

Parameter: 3Ω3W

Number of diaphragms 1 * 40mm

The frequency range:70-16000Hz

Sensitivity : 85dB.

Charging port: Micro USB

Input parameter: DC5V-0.5A

Battery size 602040

Capacity: 400mAh

Playing time : 80% 4H.

Charging time:1-2 h

Size 81 * 142 * 35 mm

Functione:BT

Waterproofe:IPX4