Technical data:
Headphone
1.Frequency range:20HZ-20000HZ
2.Sensitivity(S.P.L):118dB SPL/mW
3.Rated impedance:32¦¸+_15%
4.THD:≤1%
5.Rated input power:25mW
6.Max. input power:50mW
7.Diver diameter:¦µ40mm
8.Ear coupling: supernatural
Microphone
1.Type: Electret Condenser
2.Frequency range:100HZ-16000HZ
3.Sensitivity:-35dB±2dB(0dB=1V/Pa) or -55dB±2dB(0dB=1V/¦Ìbar)
4.Supply voltage: 4.5V
5.S/N: >60dB
6.Impedance: 2.2K¦¸
7.Currency consumption:≤0.5mA
System
1.Cable length: Approx. 2.2m
2.Jack plug:¦µ3.5mm stereo
3.Net weight(W/O cable): Approx. g
Description
1.Self-adjusting headband for optimum fit;  
2.A fashionable and movable design can comfortably adjust the microphone                      
3.It's an appliance for internet bar,enjoying talking and listening;Connects to portable equipment (CD players, DAT recorders, notebook computers,etc.