Bluetooth version V5.3

Transmission distance: 10m

Parameter 2 * 4Ω 15W

The frequency range: 40-20000Hz

Sensitivity : 85dB

Charging port:type-c

Input parameter:15W

Battery size: 18650 power battery

Capacity: 4000mAh

Playback time 80% 6H

Charging time:3-4

Size 360 * 80 * 75mm

Function:BT/LED/U-Disk/3.5mm AUX-IN/Coaxial