Hornit dB140 Bike Horn, Upgraded V3 Model, World's Loudest Bicycle Horn for Increased Rider Safety, Remote Trigger and Upgraded Mounting System Included

I love this gadget. I did buy it for protection from traffic and I did think there was an alarm on it a well. I installed it and could not figure out how to activate the alarm or simply accepted that it didn't have one. I don't really remember. However, today, sitting inside the Dunkin Donuts, resting, the alarm goes off! What?! That thing doesn't have an alarm. So, I figure it's my regular alarm. So, I shut it off. I still hear it. I sit it off again! Still, I hear it. I assumed it was not my bike (as I'm looking at it through the window). I go back to resting, thinking, I wish someone would shut that alarm off, I'm trying to rest, 😆 . It sounds just like some off alarms. Tens minutes later someone comes in and tells me my alarm is going off. What??! It doesn't have an alarm or I already shut it off, meaning the other one. I go out, and we'll the thing was going off like an alarm, only I didn't know how to shut it off 🤔 I'm pushing the buttons. I'm looking confused 😕. The last thing I try is tipping it forward. It goes off. But now! It just went off again! What the heap??! So, I unplug it, it stops. I must have hit the wire while tipping it. I hope that works for good. It's raining 🌧 I hope this is just a fluke. 🥴🧐

I'm new to bicycle riding and didn't want those dumb "ding ding" bells. This horn...is scary! It was easy to install but I did have to put a spacer on the inside mount so there is no wiggle on my handlebar. I personally will use the lower decibel "car horn" as its quiter than the 140 decibel alarm/chirp. There is a mode switch on the back of the horn and you press the button to cycle sounds. Trigger was easy and its recommended you coil wrap it around the handle bar towards the top as seen in my pictures. I haven't used it on any pedestrian or car but its nice to have. Again, the 140 decibel mode is no joke. Be sure to face the horn up so the sound goes over the persons ears as mounting the horn upside down will deafen them. Price seems to be on point, too.Do NOT test this in your house or closed garage like I did...

This is a pretty nice horn. It's louder then other horns on the market so it's actually useful in traffic. Only downside is you can't see the button at night. Needs a glow in the dark outline or something. But otherwise, it's a great horn.

If you want a loud horn that works great for city riding this is the one. Its easy to install and most importantly can be heard not only by pedestrians buy even by people inside vehicles. The reason for a horn is to let people know you are there and this horn does just that.

Great horn for bicycle commuters. Gets the attention of drivers who rush out of Costco without looking at the oncoming bike lane.

I shopped around for WEEKS and I'm happy I bought this one.Cycling is my main source of commuting, whether for work, fun, or exercise. I live in midtown Manhattan and cycling here is a sport only for the brave or the idiotic. Bike horns (not bells) have saved my life multiple times. When my old horn fell apart (and so did its replacement...), I searched for a new one that met all my requirements.The only thing that worried me about this horn was the fact that it used standard alkaline batteries instead of being USB-rechargeable. I took a risk because it's very hard to find a product that is as loud as this one claims to be, without a bunch of extra nonsense. (I don't want a motion detector alarm! I don't want a remote control! I don't need an LED screen!) I've been using this for about a month and a half now, and have not had to replace the batteries. And trust me, I use this a LOT.I wish there were different noise settings. My old one had five different sounds you could cycle through (no pun intended). But this horn still gives you the option of a quick push (a little chirp) or a hold (piercing siren).The handlebar "remote" is very convenient and easy in an emergency traffic situation. The horn (which sounds more like a siren) is VERY loud. I don't know how to measure or estimate decibel levels, but I know this is loud as hell. This has truly saved me from some potentially horrendous accidents with drivers who do not pay attention to cyclists. I haven't really tested the waterproofness but the light exposure to rain has been fine.THIS IS THE ONE YOU WANT

Contrary to other reviews, this is not loud enough. I thought it was loud at first, but I don't think cars can hear it. It's not 140 decibels. That's false advertising. The cord from the button to the horn is kind of flimsy, but manageable. It broke less than a week after having it, but it was replaced, and it has held up. the interlock of the horn makes it easy to remove.

I have a huge problem on Key Largo of cars not being aware of bikes on the designated bike/walking paths. Even after making eye contact w drivers, they still pull in front of me, cutting me off.This horn is loud and gets the attention of drivers with their windows open. No car with windows closed and probably AC and music on, has reacted in any way when I use this.So slow down at all intersections and wait for a wave from drivers before entering intersections, even though you have the right of way.From an old Driver’s Ed Teacher: Right of way is given, not taken.