MUST USE WORKING MICROPHONE! Anyway, this is a sound sensor. Watch the stuff on the screen. Each one does somthing different.Here is what each one does: 1:size 2:direction 3:color 4:boogie 5:spins Boombox:If it's loud,you can see the sound. Red line and dot:Goes up and down. Variable:A multi-song player. Hope you enjoy:)
