A decent low-cost but decent quality stereo headphone or speaker "Y" cable. Molded type that splits any headphone or stereo-out jack into female stereo jacks. This Adapter allows you to connect two sets of speakers or headphones to your computer, personal audio device, iPod or any other product with the standard 3.5mm stereo headphone jack. It also allows a set of speakers to be connected and a headphone to a PC or audio source. Please be aware that some iPhones or Andriod cases will not allow the adapter to seat properly as they have recessed jacks. Top-Line performance for portable audio equipment. A.K.A. an 1/8" Stereo "Y" splitter. Nickel-plated jacks and plug. Just shy of 4" long from tip to tip.