StarTech.com 3.5mm Speaker Extension Audio Cables - M/F - StarTech.com MU1MMFS, The StarTech.com MU1MMFS 1m headphone extension cable features 1 x 3.5mm male audio connector on one end and 1 x 3.5mm female audio connector on the other. This makes it easy to extend the distance between your headphones and your iPhone®, MP3 player, other mobile audio device, or your stereo system. The unique slim connector design fits most iPod and iPhone 3.5mm stereo jacks without having to remove the protective casingBacked by the StarTech.com lifetime warranty. StarTech MU1MMFS 1m Slim 3.5mm Stereo Extension Audio Cable - M/F