Specifications:

Speaker:
Frequency Response:20~20000Hz.
Sensitivity: 105+/-3dB.
Impedance:32(ohm)+/-15% at 1kHz.
Max Input:10mw
Microphone:
Frequency Response:50~20000Hz.
Sensitivity:-58+/-2dB F=1kHz P=1Pa
Rated:DC4.5V
Min Operation Voltage:DC1.0V

Description:
On/Off Switch Button, can be made to your technical and color description.(Suitable also for PDA earphone, PC earphone and Two-Way Radio earphone).

Character:
Fashionable Design, Clear Sound, Super Light, and Convenient Carry.