Extend the connection distance between your iphone mp3 player or other mobile audio device and your headphones or stereo system the mu1mmfs 35mm headphone extension cable 1m features a 35mm 18rdquo trs male audio connector on one end and a 35mm 18rdquo trs female audio connector on the other making it easy to extend the reach of your headphones between your iphone mp3 player or other mobile audio devices and your stereo system to ensure long lasting performance this high quality headph