CVJ-CT1 0.75 / 0.78 / MMCX Port Earphone Bluetooth Upgrade Cable, Style:0.75mm Plug

1. Bluetooth version: 5.0 2. Battery capacity: 100MAH 3. Battery life: about 8 hours 4. Charging: about 2 hours 5. Transmission distance: more than 10m 6. Microphone sensitivity: -42db 7. Material: TPE soft rubber material 8. Compatible with a variety of s