Specifications:

Bluetooth version: 5.1

Speaker: Medium 16mm/normal

Transmission distance: >10m

Headphone capacity: 180mah

Talk time: 8 hours

Play time: 10 hours

Charging time: 3H

Size: about 18x12x2cm / 7.08x4.72x0.78 inches

packing list:

1 bone conduction headset

1 manual