I bought these horns to help me locate my RC truck if/when it gets caught in the weeds at the local school. I hooked it up to my ESC (perhaps using 6 volts) and programmed my channel 3 on my remote to turn on that beep in case I needed to find it when it was out of sight in the weeds. I had to turn it upside down to prevent dirt and possibly water getting into the 1/4" hole that beeps from that plastic horn housing. Works well, could be a little louder but for now it's good. Watch the video to hear what the noise is like. It's similar to the normal horn you sometimes hear on trucks and plows.
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