Clip Ear Stereo External Sound Without Hurting Ear Business Sports Model Bluetooth Earphones(White) Filter-Micro USB Cable 9 inch 2017 A1671 A1821

9 inch 2017 A1671 A1821 (4G Version)

Can be used on Windows and Mac systems

and the work efficiency is improved

Germany IF design awards works

and can be used on routers

Clip Ear Stereo External Sound Without Hurting Ear Business Sports Model Bluetooth Earphones(White) Filter-Micro USB Cable 9 inch 2017 A1671 A18211. Bluetooth chip: Bluetooth 5656 2. Bluetooth version: V5. 3 3. Transmission distance: about 15m 4. Battery capacity: 50mAh 5. Charging time: about 1 2h 6. Use time: about 8 12h 7. Left and right frequency: 20Hz 20KHz 8. Impedance: 32 ohm 9. Sensitivity: 85dB mW 10. Waterproof rating: IPX 5 11. Material: PC+ABS 12. Size: about 3 x 2. 5 x 2cm 13. Weight: about 6g Features: 1. Ear clip design, wear stable and not fall off, no need to enter the ear, not