Sony ZX MDR-ZX310AP/W .Headband Stereo Headset
Sensitivity (db)98 dB/mW, impedance 24 ohms
Frequency Response : 10 - 24,000 Hz
Plug : Gold-plated four-conductor L-type stereo mini plug
Microphone : In-line elecret condenser
Remote Control : Multi-function button / SmartKey app