Output: 3.5mm 4 Segment Male Input: 3.5mm Stereo Jack Female (Headphone) 3.5 Jack Female (Microphone) Works with most mobile phone headsets Length: 6cm approx. Colour: Black 10 year warranty Important:This adapter cable does not work with Apple iPhone and iPad headsets and some HTC and Lenovo accessories. See ourAudio Adapter Cable for iPhone, iPod & HTC Devicesfor an alternative. This adapter cable allows you to use your traditional headset with 2 x 3.5mm jacks with your mobile phone.