3.5 mm Audio Adapter Connects to Your Laptop's USB-C or Thunderbolt 3 Port This USB Type-C to 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. Built-In USB-C Cable Attaches in Either Direction Unlike traditional USB cables that connect in only one direction, the reversible USB-C male connector plugs into a USB-C or Thunderbolt 3 port in either direction for a fumble-free connection every time. Ready to Use Right Out of the Package The plug-and-play audio adapter requires no software, drivers or external power. The compact unit fits easily into a pocket, briefcase or laptop bag for connecting on the go.