Monoprice 105586 3-Feet Premium Stereo Male to Stereo Female 22AWG Extension Cable - Black The 3. 5mm (1/8") stereo TRS connector is more commonly known as the Headphone Jack on portable mp3 players and mobile phones This cable features a male 3. 5mm stereo (TRS) plug on each end with molded connector housings and strain relief boots The conductors are 22AWG and each conductor is shield to prevent EMI or RFI interference from entering your audio system