ZIREN 140dB High-Traffic Bike Horn & LED Light Super Loud Electric Horn 120-140dB for Max Safety Alert w/Handlebar Switch USB Rechargeable

Sound
Bell quality:I’ve had electric Horns in the past that were much louder, this one is still loud, but I find myself only using one of the horns, I absolutely love the light that is on there’s two standard modes, one low brightness, and one high brightness, I use the flash all the time.And the battery life lasts, just as long.Great value for your money.A very easy installation, I love that you can adjust the size depending on how big your handle.

Very nice light and LOUD horn.
Nice cheap but quality horn and siren. Comes with a handy button you can place about 6” from the main unit. This little guy probably hits that 120 decibels no problem. I felt safe honking at cars when I had to, knowing they could hear me. It’s easy to mount, durable, battery life is great. Haven’t had to charge it in a few months. The different light settings are cool. They have red and blue. You can really get some attention with this puppy.

Loud horn
I have been looking for a loud horn, and this one is not only loud but has different tones to choose from. I also like that it also has a bright flashing light as well.

Small but mighty! Great for increasing safety around cars.
Probably the best bicycle horn under $20 I’ve seen. I’m an avid cycler and use my bike as my main mode of transportation. I’m in Texas and drivers here don’t usually watch for bicycles. I bought this horn after a negligent driver hit me on my bike, so that I could visibly and audibly assert my right-of-way. It works great for the most part. When I see drivers about to turn across my lane who aren’t looking at me, I’ll sound the horn, and I can see them direct their attention towards the noise. It’s not SUPER loud, but as long as the road noise is minimal it works pretty great. Along noisier roads some drivers won’t hear it, but the flashing strobes definitely help in those instances and are even bright enough to catch their attention in the daylight. The first time I used it, I had to sound the horn to about 30 drivers; 27 of those 30 drivers noticed and yielded to my right-of-way and 3 did not. The push button is conveniently small and can be strapped directly around the handlebar grip, so your thumb barely has to move from a riding position. It charges quickly and the battery seems to last awhile (I haven’t had to recharge it yet). I also like the variable tones it can make. Some of the sirens or beeps work better to grab a driver’s attention than others and some are more annoying, so you can change the tone to what works best for you. The process of changing the tone is slightly annoying as you have to hold the horn for a few seconds until it cycles through the different sounds. Overall, I found it to be a great product, and I really appreciate how compact it is as I’ve already got a couple other devices mounted to my handlebars and didn’t have much space left there.

I commute on city streets and needed a loud horn.Attached horn and combined light very easily to the front handlebar and separate switch. Could put light/horn on front column too. The attachment using a screw version of a cable tie was nice and easy to control tightness,/remove. It is pretty loud. The rear light is great too.I really like that they do not have batteries that need replacing. Although the front light/horn is not removable from the attachment, so will have to charge in-place using an extension cable

Very loud with a variety of sound options, the built-in LED headlight is very bright with a variety of colour and flashing options. It also comes with a good tail light. The horn and horn button are separate connected by a wire making it possible to mount them at different locations on your handlebars (the wire could be a few inches longer). Also, it’s all powered with rechargeable batteries. A good value for money.