Develop your musical ear... play your first chords and become a real rocker! With 7 LEDs that glow when you play. 5 possible rhythms. Vibrato with 3 mix functions. Different light effects depending on rhythms and guitar solos. Volume adjustable. On/off switch. 3 LR6 batteries supplied. Try Me function. Plastic. Musical and emotional awakening. Development of hand/eye coordination.