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.
  
  

   

  
  

   
   
   
   
   
   

  
  

   

  
 


 

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