1. Material: Aluminum alloy + ABS
2. Bluetooth version: V5.4
3. Bluetooth distance: about 10m
4. Working voltage: 3.7V
5. Speaker power: 0.75mW
6. Battery capacity: 30mAh for earphones, 150mAh for battery compartment
8. Charging time: 1.5h
9. Talk time: 3-4h
10. Music playback time: 3-4h
11. Charging interface: Type-C
12. Compact semi-in-ear style, different wearing styles, ergonomic design
13. CD-level sound effects, clear calls
14. Comes with a metal chain, trendy and versatile