These full sized hi-fi headphones feature a mono/stereo switch, independent left and right volume controls, adjustable padded headband and cushioned circumaural earpads. The great sound quality and robust construction make them very popular for use in the education sector.Cable[tab]1.2m[br]Connector[tab]3.5mm stereo jack[br]Frequency response[tab]20Hz-20kHz[br]Impedance[tab]32 Ohms[br]Power[tab]100mW[br]Sensitivity[tab]105dB ± 3dB[br]Speaker size[tab]40mmØ