The I-DOG Interactive Music Companion is a sleek and stylish, palm-sized pooch that loves to listen to music and will groove along to any song it hears. Easy to use, simply sit I-DOG Interactive Music Companion in front of a speaker or plug it into the headphone jack of any hand-held music system and I-DOG will move and groove to the rhythm of the song. Rock and punk make I-DOG rebellious, classical and country relax I-DOG, pop and R&B make I-DOG happy and dance music excites him. In addition to head and ear movement, I-DOG expresses its different personalities through a unique array of colorful LEDs located on its face, and can interact with its "owner" in many different ways. Batteries not included.