1. Material: ABS+Silicone+Lithium battery
2. Call distance: 10m
3. Battery capacity: 320mAh
4. Standby time: about 25h
5. Charging time: 1h
6. Talk time: about 3h
7. Bluetooth version: 5.1
8. Long battery life, can play music for 4 hours
9. Small and portable