A lot of the time, you suspect an electric wire is broken, but would like to confirm where it actually broke. Other times you simply want to locate wires placed behind a wall. Without any expensive tools, I will show you how to use two cell phones to do this.
Your project and environment could be uniquely different, so this video only provides an idea to inspire you to solve your own problem. Note that if you are dealing with high voltage circuits, you need to turn them off to be safe.
Subscribe to my channel because my invention is unique and I bet you have never ever seen anything like this before. Please share this with your friends. I know earbuds are cheap, but for the sake of environment, please attempt to fix them instead of throwing them into a landfill.