Usb headset stereo pc headset design on ear transmission mode cable types of connection usb usb 20 type of cable double sided length of cable 2 m sound mode 20 hardware type of headphones headband features volume control function mute headphone transmission range 20 20000 hz headphone impedance 32 ohm microphone properties noise cancelling microphone microphone frequency range 100 10000 hz material plastic earcup material foam included i