1. Material: ABS, electronic components
2. Function: call function, NFC function, support music, multi-point connection
3. Waterproof level: IPX5
4. Interface: TYPE-C
5. Bluetooth version: V5.1
6. Operation Mode: Touch/Hall Switch
7. Impedance: 32 ohms
8. Charging compartment battery: 250mAh lithium battery
9. Headphone battery: 35mAh lithium battery
10. Talk time: about 4 hours
11. Playing time: about 4 hours
12. Using 5.1 Bluetooth version, the signal is stronger, the transmission is sensitive and stable
13. The use of polymer composite diaphragm, bringing three-dimensional full sound effect
14. Ergonomic design, comfortable to wear and not easy to fall