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   XS-3868 Bluetooth stereo module  
     1. Features  
     1) high integration, low cost, low power consumption  
     2) comply with Bluetooth2.0 specification  
     3) Support A2DP V1.2, AVRCP V1.4 profiles  
     4) Integrated EEPROM, can be configured to work mode and parameters  
     5) stereo audio output can directly drive 40mW 32Ω speaker  
     6) Low voltage detection  
     2. Scope  
     1) Bluetooth stereo headphones  
     2) Bluetooth stereo  
     3. Parameter  
     1) .USB charging voltage: 4.2V ~ 9V  
     2) .USB charge current: 400ma  
     3) .XS-3868 power supply voltage: 3.6V ~ 4.2V  
     4) Play Music Current:. 80MA (MAX)  
     5) With machine current: less than 1MA  
     6) Module size:. 49 * 22mm (without welding XS-3868), 54.5 * 22mm (welding XS-3868)  
     4. Instructions  
     Meaning LED lights  
   
      D1: Charging   
       D2: Charging complete   
       D3: Battery low   
       D4: LED1, Bluetooth status indication   
       D5: LED2, Bluetooth status indication   
       Key meanings:   
    
        Previous: on a    
         Next: at a    
         VOL-: volume down    
         VOL +: volume increase    
         Play / Pause: Start / Pause, press switch    
         5. Notes    
         1). Next to the antenna can not have a metal    
         2). Sound shielding box can not be a large area    
    












 
         
               
             
                   
             
             
             
            