Review on 🚗 12V Universal Vehicle Horn - Electric Car Horn Twin Kit with Bracket, High & Low Tone Metal Horns for Added Safety - 118db(A) Sound Power by David Moreno

I find these devices very fair in price. I'm happy with the slightly higher pitched tone they produce. The "instructions" were two pictures on the outside of the box and are pretty much useless. I wasn't too keen on the size of these units. You are tall! Slightly an inch larger in diameter than most stock car horns. I also didn't like that the horn required a ground wire as most factory horns are grounded through the mount. Proper grounding of these horns is very important. They will be quiet/intermittent unless you offer good common ground. The last thing to check is the power requirements. Some cars don't provide enough power for them and you risk blowing a fuse. If you are unsure I would recommend using the built in relay.