Bluetooth protocol: 5.0

Channel: stereo

How to use: Earplug type

Single and double ears: bilateral three-dimensional

description:

1. English voice prompt.

2. Send out the phone number.

3. Visualize the functions of the IOS system.

4. Answer/reject the call.

5. Redial the last number.

6. HD voice quality.

7. Solution: high-end solution.

8. Compatibility mode: compatible with all versions of Bluetooth.

9. Signal transmission channel: Cassl2.

10. Usage: Semi-in-ear style.

11. Microphone sensitivity: -42DB high-end transmitter.

12. The longest transmission distance: 10-15 meters.