Features:
1) Headphone section:
a) Speaker dimension: φ40mm
b) Impedance: 32Ω
c) Sensitivity: 108dBspl at 1kHz
d) Frequency response: 20Hz - 20,000Hz
e) Rated power: 15mW
f) Power capability: 150mW
g) Cable length: approx. 2.5m
h) Plug type: φ3.5mm, stereo
2) Microphone section:
a) Microphone unit: 6 x 5mm dia.
b) Electret condenser
c) Microphone directivity: omni direction
d) Sensitivity: -58dB±3dB
e) Impedance: low
f) Frequency response: 30Hz - 16,000Hz
g) Standard operating voltage: 3V