Pipe audio in or out of your project with this very handy breadboard-friendly audio jack. It's a mono jack with a disconnect pin so you'll get a ground sleeve pin, a left tip pin and a pin that will be disconnected when a jack is inserted. You can use any 3.5mm audio cable with this jack. The pins are on 0.1" spacing so it plugs very solidly (and vertically!) into a breadboard, perma-proto or perf-board. Works best if soldered into a perf-board but does work in a solder-less oneEach order comes with one headphone jack. Breadboard and audio cable not included!