V12 Bluetooth 5.2 Business Écouteurs sans fil Bluetooth à affichage numérique LED intelligent avec boîtier de chargement (noir)

1. Bluetooth version: version 5.2 2. Bluetooth distance: about 10 meters 3. Headphone battery: 300MAH 4. Rechargeable battery: 2200MAH 5. Song/talk time: about 68 hours 6. Charging time: about 2 hours 7. Support protocol HEP\HSP\A2D\AVRCP 8. Process material: ABS+plating+food silicone ear caps 9. Frequency: 20Hz-20KHz 10. Impedance: 32 ohm 11. Sensitivity: 85dB/mW 12. The left and right ears can be worn freely and can be rotated by 270 degrees 13. The ear hook can be adjusted according to different ear shapes 14. IPX5 waterproof rating, effectively preventing sweat from damaging components 15. Ergonomic design, comfortable to wear 16. Real-time power display, the power level is clear at a glance 17. Large-capacity charging bin can also be used as a power bank 18. Charging compartment size: 9x8x3cm