Electric Bike Horn USB Rechargeable Bicycle Bell 120 db Invisible Cycling Alarm Loud Horn Waterproof 3 Modes Alert Ring for Mountain/Road Bike Scooters Handlebar 22-31.8mm

Light, loud, easily mounted, varied sounds

It's loud enough and easy to attach.works well

I'm an avid cyclist who believes in the laws of physics, so I try to alert pedestrians, dogs, and cyclists, when I'm planning to pass. Unfortunately getting people's attention on busy bike + pedestrian trails, and city streets, has always been a challenge. Cute bells, clown horns, and shouting, all failed to do that. Then I got the Ytuomzi!Even though 20% of pedestrians will never hear it over their earbuds, phones, and random distractions, and another 10% think the antique car horn and siren sounds are birds (I swear they ALL say that!), I appreciate the loud volume and cool sounds this little device emits. The sounds are loud and just obnoxious enough to get most people's attention. Best of all is how popular the antique car horn is. Little kids love it. Dogs respect it. People my old age dig it. Mom's chuckle at it. So it works!I've also used it on 1 charge for over 3 weeks, in rain and 40 degree F temperatures, and on busy roadways, without a hitch. It really holds a charge. I like it so much after 2 months of use I bought 2 more as Festivus presents for my family members who also ride bikes. It's a good quality horn at a great price.

This horn really done it job. It’s extremely loud and overdone alerting someone when riding a bike. I won’t recommend using this product in a quiet neighborhood because it loud enough to scare someone and wake people up. I would recommend using this at a busy area (cities) because it loud enough to alert people that are already in a loud city.

Easy to install, and each horn can be heard down the street.

I love the decibel level of this horn and the variety of choices for bell sounds. This my second one, and the first one has held up very well with regard to weather and battery power. The one major negative in my view is the strap. It can easily be lost if you’re not careful. So in my case I’ve had to tape my bell to the handle bar. The strap is also not very versatile when it comes to bar width and can snap.

No button for switch power or volume but works great

Prior to buying this horn, my bike only had a ding-A-ling type bell. While it worked (and still works) great for pedestrians, it was useless when trying to get attention from a distracted driver. Well, this horn really works great! Now, they can hear me!There are two buttons on the control next to the horn. One button cycles through all four of the different sounds. The other button just plays the current sound, whichever one you chose. The instructions are simple, but I don't think they are needed. Everything is self-explanatory. After you do the initial battery charging, just mount it on the bike and go.My only suggestion would be that you might want to find a way to charge the horn without removing it from the bike, because the rubber cables that attach to the bike are on pretty tight. That is a very minor quibble and it may not bother other people at all, but it is much easier for me. I hope this review helps.