Antfire Electric Bike Horn, 120DB Loud Bike Horn for Adults, USB Rechargeable Bicycle Bell, 2 Sound Modes IP65 Waterproof Bicycle Horn with Alarm for Road Bicycle, Mountain Bike, Scooter

This thing is so simple it's cool. So easy to program very loud alarm. Horn is much louder than original. On scooter. Alarm is very sensitive .I think the AC set it off and boy it scared me awoke me from a nap. I thought the smoke director went off but much loud I say! Charge lasts for 2 months, that's really cool. Great product.

Easy to use and install. The sound is a bit jarring but effective. USB recharging is far better than battery replacement. But on my various vintage bikes, this thing is just too ugly! I'll likely give to a friend and look for something else.

Exactly what you said it would be. I love the sounds.

As described; Nice fitting design; Loud enough to be heard; features an electric horn and alarm system.

The media could not be loaded. Button functions doesn't work. All it does is blinking non stop.

First off, this thing was super loose on my handlebars. Impossible to press without holding it from spinning. I’ll find some plastic or rubber to fill, or else use 2 rings to hold it on. Not as loud as I wanted, but good for pedestrians. I had one lady literally jump out of the way as I approached from behind.

Good quality and good price

To be fair it does have a pretty low price tag. Anyways it does work as advertised, but its definitely not 120DB. My guess would be 90-100DB, which is still loud, but I have no data to back that up, just to be clear. Its not quite as easy to use at it looks, and the instructions are nonexistent. Im not sure if I am doing something wrong, but sometimes when I hit, what I think is supposed to be the horn button, it just keeps blaring and wont shut off. I end up shutting it off by trying different button presses and eventually I get it to stop. It nice and small though so its easy to fit on handle bars.The design though looks good on the top, but bottom is nothing but cheapness and poor design choices. The (main) way this fits to your handle bars is to wrap an oring around the bottom and connect it to either side of the horn, it has some cut outs on the end it fits into. This is such a cheap and lazy way of doing it, they could have at least made a system to lock the oring in place on one side. Its not difficult, but you almost need 3 arms, because as you put the oring on 1 side while trying to hold the horn and the bike, you have to stretch it to the other side, and put it in the groove. If you move too much the oring pops out of the first side. What makes this worse, is that they put the charging port, on the very bottom. Thats right to charge this, you have to completely remove it from the bike. It also uses Micro USB and not USB C.I give this horn a bit of a break because it does do what its advertised (not as loud as they say it is though) and its cheap. This product though is filled with a lot of bad design choices and lazy execution. If a bike horn is something you will absolutely need and you depend on it to a certain degree, I dont recommend this model. If your someone just buying this for fun, or the occasional bike ride, or on a tight budget, then yes I can recommend this product.