This Tripp Lite® by Eaton® U437-002 USB-C® to 3.5-mm Stereo Audio Adapter allows you to connect a microphone and stereo earbuds or speakers to your computer, tablet, laptop, notebook, MacBook®, Chromebook™, Ultrabook™, or smartphone. Not only does this adapter allow you to bypass a defective sound card or 3.5-mm headphone jack, it also lets you connect to a device that offers only USB-C® ports. The adapter features separate microphone (red) and headphone (green) jacks, instead of combining them into a single 3.5-mm audio connector as many notebooks do.