Use a mic to reveal hidden wires
If you’re drilling into the wall near any outlets or switches, it might be frightening. You could get shocked to death – literally – if you’re not careful.
There is a solution, and it’s a bit of a pain, but stick with us. You may easily discover any hidden wires if you connect a microphone to a tape recorder. If the tape recorder buzzes when the mic is near a certain location, you know there’s a wire nearby, so just drill somewhere else.