This Hosa Stereo 3.5mm Mini Male Angled to 2 RCA Female Y-Cable can be used to adapt your portable audio device's mini-phone jack (e.g. Walk/Diskman, MP3 player, etc.) to play back - in stereo - on your home theater system. Can also be used to combine from two "left and right" RCA signals into one single stereo 3.5mm male connector.