HELLA H31000001 Sharptone 12V High Tone / Low Tone Twin Horn Kit with Yellow Protective Grill, Includes Relay, 2 Horns

LOUD!!!!! Fantastic horn and easy to install on my Toyota Highlander. It literally took me 15 minutes from start to finish, and I did it the right way. Toyota makes it easy to get to your horns. In less than two minutes I was unbolting and unplugging the old horns. I was thrown at first by the positive and negative posts, seeing Toyota just has one simple plug, but I plugged the Toyota plug into one side and then ran a 12 gage wire from the other post to ground with the bolt that attached the horn to the car frame. No need for the relay. I wrapped all connections with electrical tape and repeated the same process on the other side. Before buttoning up the car again I tested out the horns. LOUD!!!! Interestingly they are ear piercingly loud when you are in front of the car, but not loud at all from inside the vehicle. All sound goes straight forward. Even standing at the side of the car they only sound like a normal car horn volume, but again... anyone in front of you is going to get out of the way FAST. It actually hurt my ears standing 5 feet in front of the car. I wanted train horns, but also wanted to stay married. These horns do the job great. I couldn't be happier. Solid product built incredibly well. Nice job Hella! I would totally buy these again. I was not paid for this review nor did I receive the product for free, nor am I related to, or friends with, anyone associated with this product. It's just that darn good! And they look super cool from the outside.

Works great. Thought it would sound different but it’s just more tone. Like left and right Rather than a small beep. Either way looks great and sounds good. I installed without removing bumper but went back to clean up wiring

Installed on 2019 Forester - Louder than stock, easy to wire up. Cost was great, relay was included. I didn't want to have them be a focal point behind the grille so I put a few coats of flat black paint over they yellow. No issues and all working as expected.

Hella Corp. has been in business for a long time manufacturing quality products so I just hope this is another example, these pair of yellow horns were made in India??? These horns are noticeably heavier and a little bigger than the stock Ford OEM horns and sound almost just as loud. The write-ups had me believe they would be LOUDER than the oem horns, not so! I tried both the direct battery wiring connection with the enclosed relay and the straight factory connection without the relay, and noticed no difference in sound loudness. With some minor adjustments so that both of these horns fitted well within the confined space of my vehicle, I connected these horns using new 10gauge wire and secured them to the vehicle. Walla-they worked-they look sturdy, they are heavier, they are a bit bigger, and sound about the same as the stock horns, but now have that modern wimpy sound of all of today's vehicles, only louder. So I hope they last just as long. Wish the yellow horn covers would have come painted black from the factory but they can be painted any color you want, just by taping around the yellow covers and spraying or removing the covers. These are universal fit horns so expect some minor modifications during installation.

These horns are not overly loud. Sharptone cuts through city/traffic noise very well. Reminds me of a classic Italian sports car in a movie when I hear it coming from my Miata

So much better than the stock horn on my Subaru Legacy. Still a little shrill but doesn't sound like I'm driving a smart car. Only thing I had buy extra was the harness adapter. Oddly the one that fit was for a Toyota. Super easy to mount with one bolt. Slightly larger than stock but we're the go they could have been about 8 times the size and not been an issue.

I bought these for use on my KTM motorcycle. I have used the red version of these Hella horns on several other bikes in the past. To me the yellow horns have a tone that sounds a bit less artificial than those red ones. Maybe I would say more instrument-like, less alarm-like. They are not just louder than a standard bike horn. They use a tone which is a lower frequency, similar to the sound of the typical european car horn. Also because the diaphram of the horns is larger than the standard motorcyccle size, more sound pressure is generated, increasing the perception that the sound represents a larger vehicle. Each of the two horns here has a slightly different tone, Hella recomends the lower one if using just one but it's up to you. I won't get all into technical details but as far as installation goes: -super easy to just unscrew the old horn and replace with the new one. The bolt is larger than typical japanese horn bolts, so you may need to drill the hole out if you want to use the stock bracket. -these horns are phsically much larger overall diameter but about the same thickness as standard. You may need to be creative with the supplied, bemdable mounting tabs to find a spot with enough room. -you may need to separate and or lengthen your stock horn wires depending on the position and orientation of the original. -if you want to replace a single motorcycle horn with BOTH of these units: unless you know exactly what's what with your bike's electrical circuit, you shoul install the included relay to the horn wiring to avoid blown fuses. Overall-Works awesome, really loud and they definitely add presence to your bike in place of the stock tweeter. For cars-same recommendation, a good, loud upgrade.

Poor sound quality i give this product in one month before in many time in repair very poor bad product

Great horns but the packaging needs to actually protect them.

Pas super évident à installer quand comme moi on n'y connait que très très peu en électricité. Montés sur une 350z, j'ai l'impression que le niveau sonore est seulement un peu plus élevé que les trompettes d'origine (malgré l'installation du relais). Elles respirent cependant la qualité et sont assez esthétiques !

Muy buen tono, pero algo complicado en instalar, no tiene un manual, cómpralo solo si eres ya diestro en instalar estos, o llevarlo a un técnico para su instalación

I cheaped out and bought some hella trumpet horns previously. They were a disappointment. Better sound, but not enough volume. Fast forward to these Hella Sharptones. These are made in Hella's India plant. Not quite as nice as the US or German variety, but they work just as well. Comes with the 2 horns and a 30A generic relay (Not a hella relay like the trumpet horns!). The relay isn't needed unless you plan on wiring a switch on your car. These little horns take around 4A each (8A for 2), so any car can have them wired directly without an additional relay. My little Nissan leaf only has a 15A relay with a 10A fuse and these things work fine. They are SUPER LOUD. At 4 ft, I measured around 105-110db. Pretty close to their 115db rating. They are directional though, so when you blast your horn, people in front will hear it a lot louder than elsewhere (but that's where you need it!). My only one peeve, is the horns "warble" a tiny bit. I'm not sure if it's the mounting, or just sound disortion. Not a huge deal. Overall, BUY THESE. They work extremely well! And unlike trumpet horns which you want to aim down (to prevent water pooling), these aim forward, where you need the sound to go.