Large, colorful stripes are tempting to jump on them and see what happens! It turns out that they can make an elegant, clean sound, and hitting them is very easy. Babies crawling, crawling or jumping on the active game board produce sound effects assigned to the colored bars visible on the screen. The bars make the sounds of the instrument which are diatonic bells. The strips are activated with a single click mechanism. Multiple sounds can be activated at the same time. Activated bars light up for a few seconds.