1. Small size, easy to carry
2. Ergonomic design, comfortable to wear
3. The screen display battery is more convenient
4. IPX5 waterproof function
5. Bluetooth version: 5.0
6. Working range: connection within 15m
7. Music time: about 4-6 hours
8. Charging voltage: 5V
9. Headphone battery capacity: 40mAh
10. Battery capacity of charging compartment: 300mA
