Don't have a headphone jack on your computer, or is yours faulty? The StarTech.com ICUSBAUDIOB external sound card connects via USB and instantly adds a 3.5mm headphone output and a microphone input, with no driver installation required. Plug and Play, it is powered directly by the USB port and weighs just 14g with dimensions of 62 × 27 × 12 mm: it slips into a pocket or bag without taking up space. The C-Media CM108AH chipset handles stereo audio processing, while the black plastic housing remains discreet on any desk. Compatible with a wide range of macOS versions, from Snow Leopard to Ventura, it is just as well-suited to recent machines as it is to older configurations. RoHS, CE, FCC, and TAA certified, it meets all current regulatory requirements.