1. Power: 2x1w
2. Channel: two-speaker stereo
3. Function: battery display voice control music support multi-point connection
4. Size: 155x152x50mm (expanded)
5. Charging time: 2-3h
6. Transmission range: 10 meters
7. Bluetooth protocol: 5.0
8. How to wear: head-mounted
9. Talk time: 4-5h
10. Battery capacity: 140mah/3.7v
11. Frame Material: TR90 Nylon
12. Lens Material: UV
13. Packing list: manual charging cable earphone storage bag storage bag glasses cloth