Extend the connection distance between your iPhone, MP3 player or other mobile audio device and your headphones or stereo system. The MU1MMFS 3.5mm headphone extension cable (1m) features a 3.5mm (1/8" TRS) male audio connector on one end and a 3.5mm (1/8" 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 headphone extension cord features molded PVC strain relief at each of the 1/8" TRS connectors, which prevents the cable termination points from bending at sharp angles, in turn reducing the risk of cable damage.