1. Bluetooth 5.0, chip: Realtek RTL8763BMF
2. Battery capacity: 90mAh, charging for about 1 hour
3. Talk/music time: 9 hours
4. Standby time: 200 hours
5. Ergonomic design, comfortable to wear
6. Double-mark ENC noise reduction, clearer calls
7. Support Chinese and English prompts, three-click multi-function button when not connected
8. Size: 99x67x31mm; Net weight: 12g