Assembly Required Make your own fancy volume level display you see on DJ mixing desks where the columns of light dance up and down with the music. Connect it to the output of your CD, tape player or radio. Build two of them for displays on your stereo hi-fi system. •PCB and all parts supplied •Requires 9V battery (not included) Instructions sold separately or withing the Short Circuits book range, Short Circuits Books are available for Download Here For More Information on Kids science/electronics projects Click Here for Kits for Kids Assembly required Specifications: Kit Form Short Form (circuit only) Kit Group Short Circuit Series Difficulty Simple Application Field Audio Level Display Contains High Voltage Components No Instructions Included No PCB Width 26mm PCB Length 75mm Additional required items 9V Battery Project Number(s) 7 Volume Number Volume 2 Downloads