Key Features: Breadboard friendly 3.5 mm headphone jack Audio in or out Pipe audio in or out of your project with this very handy breadboard-friendly audio jack. It' s a stereo jack with disconnect-switches on Left and Right channels as well as a center ground pin. You can use any 3.5 mm stereo cable with this jack. The pins are on 0.1" spacing so it plugs very solidly into a breadboard, perma-proto or perf-board. Item Specifics 1 - 3.5 mm Headphone Jack Breadboard and Audio Cable not included