Headphone Style-In-ear (canalphone).Headphone Frequency Response20–20000 Hz.Headphone Sensitivity-102 dBSPL @ 1 kHz, 1 mW.Headphone Total Harmonic Distortion-<1%.Microphone Frequency Response-100 – 10,000 Hz.Microphone Pattern-Omnidirectional.Microphone Sensitivity-44 dBV/Pa.Microphone Location-Detachable.Connector Type-Single 3.5mm, 4-pole plug.Cable Length-1.2 m / 4 ft..Cable Material –