I-Dogs are electronic dogs that when hooked up to an iPod or MP3 player light up and move with the music. The I-Dog Amp'd, which was released in 2007, taps its foot, nods its head, wags its tail and moves its ears to the music that is played. It features built-in stereo speakers.

Depending on the type of music that is played, the I-Dog will change its mood, by displaying different colors.

1. Punk/Rock: red
2. Hip Hop/Rap music: yellow
3. Dance/Techno: green
4. Country: orange
5. Blues: blue
6. Jazz: purple
7. Pop: pink