Earphone Specifications:
Driver Unit: 10mm
Impedance: 16ohms
Sensitivity: 92+/-3dB S.P.L. at 1KHz
Frequency Response: 20Hz-20,000Hz
Max. Input Power: 3mW
Cord Length: approx.2-2.2m
Plug Type: 3.5mm Stereo

Microphone Specifications:
Dimensions: 6 x 5mm
Directivity: omnidirectional
Impedance: low impedance
Sensitivity: -54 +/-2dB
Frequency response: 20Hz-20,000Hz
Rated voltage: 3V