Bluetooth version :V5.3

Transmission distance: 10m

Horn diameter: 52mm

Parameter:4Ω 8W*2

The number of diaphragms : 2 * 50mm.

Frequency range: 60-18000 Hz

Sensitivity : 88dB.

Charging port: type-c

Input parameter DC5V-1A

Battery size 18650

Capacity 2000mAh

Playback time:at 80% volume 5H

Charging time:3-4H

Size 422 * 64.5 * 82 cm

Function:BT/LED/U-Disk/TF