Description:

  
 Model: Doogee Vienna
 Length: about 120cm
 
  
     Microphone
   
   
     Decibel
    
     -44 dB(+4dB-) at 0dB=1V\/pa,1KHz
   
   
     Impedance
    
     2.2K&amp;Omega; (+20%-) , at 1KHz
   
   
     Standard voltage
    
     2.5V (Max 10V)
   
   
     Standard current            
    
     100mA~~ 500 mA (Max:0.8mA AT 2.5V)
   
   
     Sensitivity
    
     2.5VDC:43dB (+4dB-)
   
   
     Signal to noise ratio
    
     &amp;gt; 58dB
   
   
     Distortion rate
    
     &amp;lt; 3%
   
  
     Speaker
   
   
     Power                 
    
     3 mW
   
   
     Maximum working power
    
     5 mW
   
   
     Impedance
    
     16&amp;Omega; (+20%-)
   
   
     Sensitivity
    
     90dB(5+dB-) at 1KHz, 126mv                       
   
   
     Transducer
    
     Moving-coil loudspeakers
   
  
Package Including:

1 x Doogee Vienna Earphone

More Details: