Use the 3.5mm to RCA Cable to connect your phone, iPod or any media player with a mini headphone jack to any available RCA input jacks on your sound system. This three foot cable has a 3.5mm (1/8") stereo headphone jack at one end and two RCA jacks at the other end. Simply plug into your iPod or MP3 players headphone jack and connect the RCA jacks to your sound system to enjoy all great features of portable digital audio players.