The first one I had and I started the process of buying again was good and very useful for me on the bike especially for the horn which has 6 different ones. It also has a flashlight with 6 functions and kilometers. The new one I got has a problem and one time the flashlight turns on, another time it resets and you can't figure out which button to press. Fortunately, it is my secondary counter and I only use it for the horn, but with all the issues, the battery runs out on a 3-hour ride. It's a bit risky to buy.

Just don't buy it... It does NOT secure on the handlebar, not even magically... It changes position or falls down with every pothole. Also, with every pothole, the horn plug comes loose... Prefer a light that secures with a screw and not with rubber...

Changes angle on the steering wheel with the vibrations, I noticed that during a ride it turned off by itself even though it was fully charged, the cable included in the package is for type C while this charges with a micro USB. Nevertheless, for its price, it is good but I wouldn't pay more than 13 euros for it when I bought it

One of the same, in the beginning it worked well but after a while problems started. The horn would get stuck, turn off and on during charging, and the battery died. It has a short expiration date. Don't waste your money, it's better to buy a reliable bicycle flashlight and a reliable bicycle odometer separately

Very good flashlight, rechargeable so you don't have to deal with batteries.
The light is satisfactory for its size and price. It has 2 levels of lighting, fog (yellow) and strobe.
The horn is very loud and has six sound options.
It attaches well, but in puddles and vibrations it moves up/down and needs to be adjusted by hand.
The fastening rubber has been durable for the 4 years I've had it, but it also requires attention (not excessive stretching).
The battery lasts quite a while, but that is relative based on each person's usage.
It also has various indicators, such as speed, but personally I never used it because I didn't want the extra cables.
It claims to be waterproof, but I would never risk leaving it in the rain.

Very bad light, you can't see anything, it's overly targeted. It didn't even measure the speed, the horn was excessively loud without a way to decrease the sound. One day, the horn started beeping non-stop out of nowhere, it wouldn't stop with any button, and I had to break it... The worst purchase I have made so far, DO NOT GET IT!

The product is a watermelon, I have bought it twice, the first time it was good for its price, the second time it didn't work, it turned on and off by itself, no warranty mentioned

Powerful flashlight, strong horn. Definitely everyone will hear you.
Overall, it is a good product. One negative is the base of the flashlight, which is made of rubber and the flashlight moves when there are potholes. I expected it to have a base that tightens with a screw on the handlebar to be more stable.