Technical data
Headphone
1.Frequency range:20HZ-20000HZ                    
2.Sensitivity(S.P.L):118dB SPL/mW                            
3.Rated impedance:32¦¸                        
4.THD:≤1%                                    
5.rated input power:25mW                      
6.Max.input power:50mW                        
7.Diver diameter:¦µ40mm                  
8.Ear coupling:supraaural
Microphone
1.Type:Electret Condenser                                
2.Frequency range:100HZ-16000HZ                    
3.Sensitivity:-35dB±2dB(0dB=1V/Pa);-55dB±2dB(0dBV=1V/¦Ìbar)                              
4.Supply voltage:4.5V                      
5.S/N:>60dB                                
6.Impedance: 2.2K¦¸                        
7.Currency consumption:<=0.5mA
System
1.Cable length:Appr.2.2m              
2.Jack plug:¦µ3.5mm stereo                  
3.Net weight(W/O cable):Appr.47g
Description
1.Self-adjusting headband for optimum fit;
2.The flexible, sturdy arm allows you to place the microphone closer to your mouth, so your callers will benefit from your remarkable vocal clarity;
3.It's an appliance for internet bar,enjoying talking and listening;Connects to portable equipment (CD players, DAT)