The Yo Gabba Gabba Boom Box Theater has 4 of your favorite characters on top. Once you open the BoomBox you can see them in their Gabbaland. Simply press the button to activate the music and light effects. Musical BoomBox complete with 4 of your favorite Yo Gabba Gabba songs. Easily connects to MP3 Players or Other music sources with the Audio connector cable (Music Player and audio cable not included).