Califone ST Audio Splitter, Lengthy 18" Lead Stretches Around Backs of Computers, 2-into-1 Plug Doubles Student Participation on Computers, Rugged ABS Plastic for Added Durability and School Safety Lengthy 18" lead stretches around backs of computers Promotes cooperative learning, language & social skills 2-into-1 plug doubles student participation on computers Universally sized 3.5mm stereo plug connects to MP3 players, media players and computers Rugged ABS plastic for added durability and school safety