1. Headphone type: Air conduction bluetooth earphone
2. Bluetooth version: V5.0
3. Transmission distance: 10m
4. Bluetooth chip battery capacity 150mA
5. Frequency range: 20HZ-20KHZ
6. Charging time 1.5 hours
7. Play time about 6 hours
8. Working temperature: -20℃ ~ 70℃