150db Super Loud Dual Trumpet Air Horn Kit with Compressor for Vehicles, Trucks, Trains, Boats - 12V, Black

Hooked this horn up on my 1959 Larson All American 16ft runabout. Small boat, Big horn! The irony is great. Installation is pretty straightforward.

Works great made myself a drill horn sound is just right loud but not to loud.

Worked great for me, easy to install and the sound was much louder than the two factory horns I replaced in my tool truck. Not as loud as compressor driven semi horns but loud enough to fit the look of my truck. I would recommend. I only have about 12 honks through it thus far so I can't speak on longevity. Install tips: point horns down so that not to collect water, use dialectic grease on relay and fuse since they are cheap and not ip rated.

Nice and loud, easy to install. These horns have a nice sound that's plenty loud, without being too loud. They were easy to install, though the relay block didn't work correctly, though I was able to fix that. I like the tone of these horns, and they were priced right! They fit right in behind the grill (see picture), so it was easy to install.

Decently loud but often has a high pitch squeal when activated. This does not sound like a semi or a train horn, size is about what I expected, but you get what you pay for.

Well worth $25. Installed underneath a Club Car golf cart. Has metal horns that are threaded in vs plastic. Very loud for such a small compressor.

Love it!!

Doesn't work. Finally got around to trying to set this up after 3 months sitting on my shelf... I know, my bad. And nothing happens when you connect it to a battery. The horn works if you have really strong lungs and can blow through the tube hard enough, lol. But, the compressor makes no noise and the relay doesn't seem to be doing anything either. Worse, it's supposed to have a 12 month warranty, but there seems to be no way to actually contact the seller, even though the overly simply "manual", if you can call the 2 page pamphlet a manual, says to contact them for support, it doesn't provide any way to do so. All the Amazon links lead to preprinted trouble shooting text, or to texting that leads to Amazon customer service. Maybe that will help somehow, but I can't find any way to actually reach HK or the seller.