Specifications
Connector: 3.5 mm 4-pin combo-jack, stereo + microphone
Sensitivity (at 1KHz) : 105 +/-3 dB
Impedance : 32 Ohm +/-15%
Speakers: 40 mm diameter, 16u mylar
Frequency response: 20 - 20000 Hz
Input power: up to 100 mW max
Distortions: < 3 % at 1KHz 40mW
Microphone: condenser omni-directional; sensitivity:-58 ± 3 dB(0 dB=1V/uBar at 1KHz), -38dB (0 dB=1V/Pa at 1KHz), 30 - 16000 Hz
Net weight: 0.2 kg
Cord length: 1.8 m

System requirements
3.5 mm 4-pin stereo and microphone input combo-socket