M1S Bone Conduction Stereo Vibrator Speaker Bluetooth Earphones(Green) Filter-More Brand Cases the color will not fade

the color will not fade after washing

Bridge-type load-bearing principle

and can connect game consoles through 3

Metal material wear-resisting

strong cloth spacer to keep your phone safe and within your sight

M1S Bone Conduction Stereo Vibrator Speaker Bluetooth Earphones(Green) Filter-More Brand Cases the color will not fade1. 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