Gigaware Headphone Splitter with Dual Volume Control Wherever you listen to music, you can share it with a friend. Plugs into any standard 1/8" (3.5mm) headphone jack so you can then plug two sets of headphones into one player. Share you iPod, MP3 player, CD player or laptop music with a friend 2 volume controls lets the individual control the volume based on their preferences Small and compact so you can take it with you anywhere