More Details: 

 
 
 
 
 
 
 
 
 
 
 

 Features:
 
 Can be as a FM radio. Know more news.
 Putting TF card. Listen to the music you like.
 Hands-free talking, it is free to talk with friends without carry out your phone.
 Remote photogragh, take pictures as listen to music.
 Voice prompt the status of watch speaker.
 There is a alarm prompt when your phone is out of effective Bluetooth distance.
  

 Specifications:

 
  
   
    General Specification
  
  
   
      Model Number
   
     B20
  
  
   
      Color
   
     Blue, Black, Red, Gold, White
  
  
   
      Net Weight (g)
   
     180g
  
  
   
      Dimensions (mm)
   
     93*39*28mm
  
  
   
    Technical Parameters
  
  
   
      Connectivity
   
     Bluetooth 
  
  
   
      Rated Power
   
     3W 4R
  
  
   
      Charging Voltage
   
     DC 5V
  
  
   
      SNR
   
     80dB
  
  
   
     USB Type
   
     USB2.0
  
  
   
      Frequency Response
   
     120Hz-20kHz
  
  
   
     Battery Capacity
   
     500mAh
  
  
   
     Bluetooth Version
   
     2.1+EDR
  
  
   
     Input Current
   
     ≥500ma
  
  
   
     Storage Type
   
     TF Card
  
  
   
     Play Time
   
     10 hours
  
  
   
     Transmission Range 
   
     About 10m
  
 


 Package  Included:

 
  
   
    
   
     1 X B20 Bluetooth Watch Speaker
  
  
   
     1 X Charging Cable
  
  
   
     1 X Manual