Case of: 72 This 3.5mm Auxiliary Audio Cable lets you connect a cell phone, tablet, or MP3 player to a stereo system, speaker, gaming devices, computer, and other 3.5mm devices. The 3-foot-long cable is ideal for connecting devices in your car. Keep this electronic accessory on hand for listening to music and connecting auxiliary devices. This must-have cable comes packaged inside a hanging clamshell.