The 3.5mm (1/8) stereo TRS connector is more commonly known as the Headphone Jack on portable mp3 players and mobile phones. This splitter cable features a female 3.5mm stereo (TRS) jack on one end and a pair of 3.5mm male stereo (TRS) plugs on the other end, each with molded connector housings and strain relief boots.Warning This cable is intended as a splitter only. Attempting to use it to combine two stereo signals into a single stereo signal can cause damage to your equipment. The only proper way to combine two audio signals is by using a mixing board.*** 30-day easy returns. No restocking fee. Free lifetime technical support. Limited lifetime warranty. ***