1. Material: ABS+PC
2. Battery: 90mAh
3. Bluetooth version: V5.3
4. Charging time: 2h
5. Standby time: 60h
6. Listening time: 11h
7. Call time: 11h
8. Collar clip and magnetic card slot design, hard to get rid of
9. Semi-in-ear type, does not hurt the ears
10. 14.2 composite membrane speakers enable high-definition calls and rich listening experience