Stereo pc headset usb headset design over ear types dynamic closed transmission mode cable types of connection 2x 35mm jack usb 20 type of cable single sided length of cable 3 m sound mode 20 hardware type of headphones headband features adjustable headband led indicator in line control volume control padded headband passive noise cancellation function mute headphone transmission range 20 20000 hz headphone impedance 50 ohm driver 40 mm mi