Become a rock star playing our infrared air guitar. Simply press on the chord buttons while strumming the air. The infrared sensors detect your hand motions and play the notes to your beat. You can play all the chords with the built in speaker or play along with 10 preset songs. You can even connect to your music player or external amplifier. Contains earphone jack and runs on 2 "AA" batteries, not included. Measures 8-1/4" x 3-1/2" x 1-1/2".