Explore the science behind electric circuits as you build your own door buzzer to safeguard your space. Set it up discreetly behind your door to deter intruders from entering your room. Discover the excitement and enjoyment of this hands-on activity!

Experience the thrill of constructing a functional door buzzer and enhancing your understanding of electric circuits. Place it inconspicuously behind your door to ward off potential intruders and protect your space. Engage in a cool and entertaining learning experience!

Dimensions: 17cm x 22cm x 6cm.