Secret hiding places are now safe with this electronic kit that turns into a self-built alarm system for the nursery in simple steps. With siren and warning light against candy thieves etc. - At the same time, circuits and electronics are researched playfully. Extra: The kit also turns into a Morse device to transmit important messages. With many tips and pictures, the instructions explain the easy assembly and conveys circuits, electronics and Morse codes using the alarm system. The Kosmos experiment box is the perfect souvenir for a children's birthday party - so all gifts are directly expertly secured.