Usb 3 ports hub: transform one of your computer's usb ports into three.(this hub is not designed to charge devices.).All in one design:under-desk headphone stand,equipped with 1 usb 3.0 port,2 usb 2.0 ports, 3.5mm aux audio port, have instant access to your usb peripherals and a simple easy way to plug in your headphones.Universal compatibility - supports all over-ear headphones including bose, beats, sony, panasonic, akg, jbl, audio-technica, sennheiser, shure ,wireless blutooth headset, earphone and more.What you get: cozoo headphone dock with usb hub and audio port, 5ft / 1.5m date cable, 24-month cozoo warranty & 90-day money back guarantee.if there is any quality issue for this headphone rack or you are not happy with your purchase, please do not hesitate to contact us.