Dido W11S Bone Conduction Waterproof Wireless Bluetooth Sports Earphone(Black)

1. Headphone type: Air conduction bluetooth earphone2. Bluetooth version: V5.03. Transmission distance: 10m4. Bluetooth chip battery capacity 150mA5. Frequency range: 20HZ-20KHZ6. Charging time 1.5 hours7. Play time about 6 hours8. Working temperature: -20℃ ~ 70℃