3.5mm M/F 1M Stereo Headphone Audio Extension Cord Cable Lead Volume Control Extend the distance from your iPod, MP3 player to any audio output / speaker devices. One end with a male 3.5mm mini plug, the other end with a female 3.5mm mini jack. The extension cable is great for stereo headphones, speakers, microphones etc. With volume control. length about: 1 metre.