Earbuds wireless bluetooth headset

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...