Door bells have been in our houses for years. It’s design and purpose haven’t change. But do you ever realize that there are a lot of missing things in a single door bell? What if you are in a sound-proof room, would you still hear it ringing?
This man discovered endless possibilities on door bell. Because he could not hear the ring, he made it available around the house. In fact, each button has its distinct sound. Isn’t that brilliant?
Watch the video below:
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