Quick overview from the supplier:
Dell Stereo Headset WH1022 (520-AAVV), USB -A / 3.5mm Stereo Jack Connetctivity Noise-Canceling Mic, Adjustable Mic 150 Hz–7 kHz, LED Lights Call Indicator, Sound/Mic Mute, Volume +/-, Cable Length 2.9m, Earpad Material Leatherette.
