1. Transmission range: 15 meters
2. Functions: battery display, call function, music support
3. Bluetooth protocol: 5.0
4. Channel: stereo
5. Whether single or double ear: bilateral stereo
6. Built-in battery: 400mAh lithium battery
7. Charging time: 2-3 hours
8. Standby time: about 200 hours
9. Playing time: 8-10 hours
10. Size: 17.2x17x7.5 cm
11. Weight: 184 grams
12. Skin-friendly artificial protein leather earmuffs, comfortable to wear
13. Telescopic head beam design
14. Fifteen meters Bluetooth stable transmission
