Monoprice 667 3.5mm splitter. This adapter lets you split your 3.5mm port (also called mini-Stereo) into two! Plug in the male connector into your existing port and you get two female ports available for use. Plug & play and works with things like sound cards, iPod, iPhone, or any other device with a headphone jack. Plug two headphones or speakers into one jack. High quality connector will protect your device from accidental breaking. Adapter is approximately 6 inches in length.