Sure to be a Sold Out show! Jam Man and band are coming to rock your town. Uses a preprogrammed PIC16F88 microcontroller and a sensitive IC amplifier with an electret microphone to drive a 5X7 green LED matrix display. Jam Man is happy and sings along to the music. When its quiet for awhile he takes 5 (frowns and then goes to sleep) until he hears sounds again, then he gets back on stage! Operates on one 9V battery (not included). Size of PC board 2.8" X 1.25". Complete with all parts, PC board and instructions. Requires soldering. Skill Level 2.