M1S Bone Conduction Stereo Vibrator Speaker Bluetooth Earphones(Black) Denior and has no effect on

and has no effect on typing

Material: ABS + PC fireproof

High transparency with high clarity

so it can prevent itself from being scratched or broken into pieces effectively and continually

M1S Bone Conduction Stereo Vibrator Speaker Bluetooth Earphones(Black) Denior and has no effect on1. Bluetooth version: V5. 3+EDR 2. Speaker type: bone conduction 3. Oscillator frequency: 20Hz 20KHz 4. Impedance: 32 ohms 5. Sensitivity: 85dB mW 6. Waterproof rating: IPX 6 7. Play time: about 7h 8. Battery capacity: 150mAh 9. Play time: about 6 8h 10. Standby time: about 150h 11. Charging time: about 1. 5h 12. Frequency band: 2. 4GHZ 13. Bluetooth protocol: A2DP1. 3 AVRCP1. 5 HFP 14. Weight: about 23g Features: 1. Dual silicon microphones, tuning