12V Air Horn Kit, Super Loud Train Horn for Truck, Air Horn Dual Truck Horn with Compressor for 12V Vehicles Trucks Pickup Trains Cars Boats (Dual silver)

This horn is everything as advertised. Easy to install and super loud. Everything works great and would highly recommend to anyone.

I bought these to make a screwgun air horn. I first bench tested them, I only have a 10amp power supply and the horn instructions say they need 15amps. The sound was so so. But when I added a battery in parallel and they got the current it needed, they were definitely a lot louder. So make sure you have at least 15amps. It comes with a relay and other wiring is 14awg wire. If you have a long run to your car battery I would use 12awg to ensure proper current.These are definitely loud for my setup. It actually hurts my ears. If you don't get the loudnees you think you should get, check your input voltage and current as it definitely plays a factor in sound output.

Product arrived wellPackaged and without damage. Took me approx 2.5 hours to install. The hardest part was looking where to place the horn. I wanted it faced forward to my intended direction where it would be effective. I basically took the easier route for installing the wiring and compressor. I wanted to keep my original horn so I used the Blue wire to trigger the compressor when I press down on the horn. Now it’s even louder! Love it!

After removing the grill from my ToyotaTacoma, following the directions and installing this horn, no matter what I did it would not work! I've installed car stereo, and other electrical and electronic devices on trucks my whole life. I also own an IT company and I'm pretty good with electronics. I changed the relay, double and triple checked the wiring to no avail. It's been sitting in my garage for over a year and ran across it today. I decided to write a review so others wouldn't make the same mistake and purchase this horn. Do yourself a favor and spend more money for a higher quality horn.

I had been looking to replace my factory horn that stopped working properly years ago with an air horn. This isn't quite like others that I've heard that I like, but it certainly gets the job done lol. Definitely worth the money.

That’s right this thing is awesome it is so loud and obnoxious and is perfect for someone that’s in to being obnoxious 😂It’s probably the easiest thing I have installed on my truck the instructions were really easy to understand and were very very simple. Love this thing!!!!

It was cheap and still a bit louder than others I've owned!

My camper van has a very anemic horn which is buried inside the fender. Too many drivers do not recognize it as a 6 ton RV instead of a passenger vehicle with good handling and braking. I needed a better horn, but not one of those obnoxious things that scare other drivers into sudden mistakes. I had to remove the grill and bumper to remove the fender so I could reach the OEM horn. It took far too long to find places to mount the components and run the wiring, then reassemble the vehicle. Then it wouldn't work. The next day I had to disassemble the fender to try to fix the horn, then finally remove it in order to return it. But then I noticed a YouTube video on another horn, which led to videos on installation and how the relay works, and so on. So I spent a third day shopping then finding a place to shoehorn the horn behind the bumper and wire it directly to a dash momentary switch instead of trying to replace the OEM with this one. This horn now works. It is not really loud, but more noticeable than the original one. And I now have the choice of the weak horn for polite reminders or hellos or the louder horn to get drivers' attention. If my vehicle were easier to access mounting areas, this would have been a better experience. That is more the fault of the manufacturer than the horn. If you want to have the loudest horn in town, this is not for you. But if you just need a safer warning sound, this should work. However, their website does not exist and the internet is filled with claims of scams. Decide for yourself if you are comfortable.