It´s a cheap device with a poor construction, it is easy to install but a little dificult to install the batteries. A good device to install on your bike with a very noise sound, the leds are weak to use as a light warning on traffic. When you push the button the lights turn on and a noise I... It´s a cheap device with a poor construction, it is easy to install but a little dificult to install the batteries. A good device to install on your bike with a very noise sound, the leds are weak to use as a light warning on traffic. When you push the button the lights turn on and a noise sound starts, the standard wire is too short so I did some modifications and installed a new button with a different wiring. When i push the first button the lights turn on, when I press the second one, the noise sound starts, so I installed on the back of my bike and I can use as a poor warning light. Well, it is a very cheap device and since I like electronics I just bought it to do some modifications and have some fun. If you are concerned abou security I suggest to spend your money on something better. Read more

Very loud! Decompositable and repair-suitable. Acceptable price. For "as is" it has questionable advantage. 1. The first and the principal is that this horn looked very fragile and also can be easy scratched. 2. Not easy to disassemble to change batteries. You will need to turn away the... Very loud! Decompositable and repair-suitable. Acceptable price. For "as is" it has questionable advantage. 1. The first and the principal is that this horn looked very fragile and also can be easy scratched. 2. Not easy to disassemble to change batteries. You will need to turn away the screw (on bottom side of the horn). But it has a positive side - because it the top case hold strong. 3. Button wire may be too short, but if you have a soldering iron and some technical skill - it is not a problem. Mount this horn onto your bike and when it gets broken you can simply disassemble it and install in your own fitted case and hide it (for example) under the bike saddle. Otherwise it worth this money. Read more

Nice horn. Decently loud. Inside it's pretty loud, outside it isn't as loud. Definitely catch some attention. There are only about 2 or 3 good tones, The others are slight variations. There is a cop one which could be nice, but I wouldn't want to play it when there is a cop around. None really. a... Nice horn. Decently loud. Inside it's pretty loud, outside it isn't as loud. Definitely catch some attention. There are only about 2 or 3 good tones, The others are slight variations. There is a cop one which could be nice, but I wouldn't want to play it when there is a cop around. None really. Ive heard from other posts that it's loud. It isn't that loud outside. Or maybe my music is just too loud to hear the loudness. I guess the metal piece that holds the button could be made a bit better to actually hold on steadily instead of a bit wobbly. You can really only have it set to one tone. The switch to change tons is under the device and hard to reach at while biking. Although there aren't that many tones, its probably fine leaving it on one. Buy it. It feels great when you can honk at motorists that cut in front of you while biking. Read more

Wow this thing is insanely loud. A lot of leds, White, orange, red. Easy to switch between the melody, cops, alarms etcs. there was a missing metal connectors, wich i replaced with aluminium foil. It work just as the original. Aluminum is a good conductor. -Not waterproof -The speaker should face... Wow this thing is insanely loud. A lot of leds, White, orange, red. Easy to switch between the melody, cops, alarms etcs. there was a missing metal connectors, wich i replaced with aluminium foil. It work just as the original. Aluminum is a good conductor. -Not waterproof -The speaker should face the traffic and not you. -I'm gonna be deaf... thats too loud. This morning i got awake by the alarm, a thief tryed to steal my bike but apparently he pressed the button... I BET HE GONE DEAF ^^. This thing is insanely loud, you can wake up the whole neighborhood with it. Read more

The very nice Price. A Very loud horn, hurts ears, it's truth! Nice lights. Gree, red and yellow combination. Very fragile. Inside, the plate with lamps came lose, then I had to use a glue. The support is very small and therefore do not fall within any part of the bicycle. This gadget is too big... The very nice Price. A Very loud horn, hurts ears, it's truth! Nice lights. Gree, red and yellow combination. Very fragile. Inside, the plate with lamps came lose, then I had to use a glue. The support is very small and therefore do not fall within any part of the bicycle. This gadget is too big (13cm), but the wire between the appliance and the power button has 15cm only, so is difficult to install. The seller is good because it came in a well protected package. Sorry, it's loud, but fragile. Read more

Well... It is loud horn. Really loud. And a cheap one. That's all PROs for this device. Overall build quality is out of dicussion. Horn melody selector was brought out of early 1900th, hanging wires inside the case, steel contacts in battery container are looking like they were bent manually by a... Well... It is loud horn. Really loud. And a cheap one. That's all PROs for this device. Overall build quality is out of dicussion. Horn melody selector was brought out of early 1900th, hanging wires inside the case, steel contacts in battery container are looking like they were bent manually by a drunk gorilla. That's what is inside the horn. I'm interested, if RED lights in China are allowed to be used as a headlights? Headlights are to be white or yellow, at least in my country. Wire for horn button is 20 sm long. Unusable. Mount bracket and the case are made of a cheapest plastics I've ever seen If you are willing to set this device to it's place, you have to act very carefully - device is not looking tough. Also you either have to replace horn button wire, or to search for the button under your seat each time you will make a try to use it. Or you can use red light as a headlight, confusing everyone. Money for nothing. Really this light and horn a piece of a crappy plastic and several pieces of wires. I will not be crying when this light will break and I'll throw it away. Read more

-It's loud! -Runs on AA batteries. -Easy to use, just press the button, rotate the knob to select different sounds. -Cheap -The build quality isn't good, lot's of wires just hanging around inside, the knob to select the sound is very sturdy and probably breaks easily. The batteries have a really... -It's loud! -Runs on AA batteries. -Easy to use, just press the button, rotate the knob to select different sounds. -Cheap -The build quality isn't good, lot's of wires just hanging around inside, the knob to select the sound is very sturdy and probably breaks easily. The batteries have a really close fit -Probably not watertight, but maybe it can have some rain. -Too loud to use in calm traffic, it will scare people. -Leds not useful Fun toy to scare people, not very useful on the road here in the Netherlands. Build quality could have been better. Would make a nice siren for a kids police car. If you want something that produces a lot of noise, buy this, won't disappoint you. Read more