Tripp Lite P316-06N adapter cable is the ideal solution for allowing your mobile devices with 3.5mm stereo output to be connected to home audio RCA inputs. While most mobile devices use the 3.5mm stereo headphone output, most home audio systems with an amplifier or receiver use RCA jacks for audio inputs. This cable is ideal for adapting the output of your MP3 player or phone to stereo RCA plugs for connecting to your home audio system.