VIOTEK VT849MV Hi-Fi Headphones - 40mm Drivers, Mini-Jack Interface, Microphone Premium braided USB cable that makes snags and tangles a thing of the past! Inline microphone and switch that works seamlessly with phones that are equipped with 3.5mm jacks to trigger call actions or to trigger voice commands. Included 3.5mm breakout cable for audio and microphone ports that enables you to use the RVT-849 with your PC! Premium construction that includes padded ear cups and headband with included 40mm drivers offers unparalleled audio fidelity and comfort for hours on end. The RVT-849MV is also size adjustable, no need to worry if you'll be able to use this headset!