SODIAL(TM) 3.5mm Jack Splitter Splits any 3.5 mm audio jack into two connections Use with PC, stereo, MP3 players, any 3.5mm output jack Headphone Jack Splitter 3.5mm 1/8&quot; Stereo Mini Plug. For splitting one output to two outputs. Use this Adapter to attach Two sets of Headphones or Two Sets of Speakers.