EPGardening 2.5mm Male to 3.5mm Female Stereo Audio Jack Adapter Cable Color Black Type: 2.5mm male to 3.5mm female adapter Allows your phone/PDA to connect to any home stereo system Convert the 2.5mm earphone jack to 3.5mm earphone jack For audio / muisc output ONLY,audio input not available Use 3.5 mm Headphone on 2.5 mm device