Water-resistant Digital Amp and Speaker System lets you take your music on the road by simply connecting your portable MP3/audio player. MP3/audio player not included. Amplifier controls volume up/down and mute. Digital Audio Attachment Kit required.NOTE: Fits VTX1800C '04-'07, VTX1800R/S/T '04-'08, VTX1800F '05-'08, VTX1800N '04-'08, VTX1300C '04-'08, VTX1300R/S/T '04-'08, Shadow Aero 750 '04-'08, Shadow Spirit 750C2 '07-'08.