GREENCYCLE 1 Pack Bike Alarm with Remote, Anti-Theft Vibration Security Motion Sensor Alarm for Vehicle Bicycle Electric Tricycle, 113dB Volume and Sensitivity Adjustable,IP65 Waterproof,SOS Function

Alarm bracket clamps onto the frame and you can place it where you like it. Hide it to surprise a would-be thief or put it in plain sight as a warning. Alarm unit detaches easily for recharging which also means a their can easily remove it. The sound is a piercing high pitch which is easily heard. An excellent value if you are looking for an alarm that does not break your bank.

I've installed this alarm in two scooters/mopeds and it gives me huge piece of mind. It's both sensitive to movement, and very loud. The batteries last a couple months, and need to get swapped out from time to time otherwise it gets quiet, but it's also a good chance to make sure it's functioning when you switch out the batteries. There's a function that helps you find your vehicle, so that for me was an unexpected quality of life improvement I didn't intend when buying this. I think it's deterred one theft so far, since the scooter was tampered with, but still exactly where I left it.

works perfectly needed a little more protection for my ebike and now I feel much more comfortable going into business knowing the alarm is on my ebike it's loud

Great Alarm, Loud and Proud and ready Shout 😅😅, yeah but it's a good alarm device I'd buy it again and again good value also, Big up's to Greencycle 👍👍👍

I love this alarm. works great. ease of installation. the directions were simple. It sturdiness is seen by attaching it to a flat clean surface. Keeps my bike secure with this loud security siren.

I bought 2 different types of bike alarms early last year for my new E-Bike, so if one went dead, bad or was stolen, I had the other as a back-up. I bought this one, and one from a competitor. Both have similar abilities, but the other one had a USB port to charge the battery. GREENCYCLE had their alarm delivered to me within a week, while after over a month, I still didn't get my alarm from the competitor. I had to contact them 3 times to find out what was going on. Finally after another 2-3 weeks the other alarm finally came. GREENCYCLE's Bike Alarm is slim and fit just right in a spot that no-one will see, while the other one had a bracket that attached to the handlebars with just a small screw to hold the alarm to the bracket. The competitor's alarm had to be recharged every few days and after a couple of weeks the screw came undone and the alarm fell off without my knowledge, so it was lost. GREENCYCLE's alarm on the other is still going strong. The battery finally died after about a year, and it is easy to get off and replace the battery. All I had to do was cut the two cable ties, replace the batteries, and use 2 new cable ties to fasten the alarm back in my hiding spot. Since that alarm was preforming so well, and I still wanted a second alarm as a back-up, I finally bought the same alarm from GREENCYCLE. One thing that is nice about having these two alarms is that I set the codes so I can use either of the remotes on both alarms. They also have some nice features suck as a panic button or SOS function, and if my bike falls over or I have an accident on my bike the alarm will go off to summon help. If you are looking for a good reliable bike alarm, I will Strongly Urge you to buy, not just one, but two of these alarms for better safety for you and your bike. Tom P.

It’s a very loud alarm and the remote extends for quit a ways…so if you forget and your walking away you can still arm it and feel safe. I also use the horn feature to scare off birds who would land on it and leave droppings.

The alarm is designed to do more than what I purchased it for. I simply needed a remote control alarm buzzer to scare squirrels and starlings off my bird feeder. It does that. It's very loud so I put it into a plastic food container to muffle it a bit so I don't scare the neighbors. It's only 8 ft away outside my kitchen but I believe the range is 60 meters -.. I would have given 5 stars but the instructions are incomprehensible.

I keep one in my work bag if someone touches it the alarm goes off.... And I put one on my electric scooter... It's loud and will let you know if there's a thief trying to steal....

I purchased this item based on its positive reviews, and the fact that it had an "SOS" button feature. Just push a button on the remote, have the alarm sound, push a button again, and have the alarm turn off. I wanted something I could use to spook the cats off of the window sills, and this sounded like a great inexpensive solution. I checked repeatedly with Walmart's "AI chat" feature that this Greencycle alarm would work in that fashion before putting it in my cart- not that doing that is a guarantee everything will turn out ok. I am disabled, and can't drive to the stores or a post office to make returns, so I make sure to be as careful as I can be any purchase I am making will work out. Shipping was fast. The item appeared to be quite sturdily constructed. The unit is made out of solid plastic. You pull out a clear plastic tab to activate an interior battery (I assume.) It comes with a fairly well-made little remote. And- that it where my comprehension of this device stops. As other purchasers have stated, the instructions were evidently written by inferior, or outdated, translation software. They are totally incomprehensible. I read through them a few times, and thought, ok- well- I can figure this out. No big deal. The unit comes with installed batteries, which implies the alarm is ready to use. How complicated can this thing be? But after about a half hour of reading, re-reading, and poking buttons, things started to get very tiresome. In frustration to get the SOS feature to work, I went back to the "instructions," which mention baffling things like "learning codes." Except- no list of learning codes. "Be cautious of the host can caters up to 8 remote controls coding only, the first registered remote control coding will be removed if exceeds 8 remote controls registration." Fun, huh? I received this item on a Saturday. I found, at least, some contact information for GREENCYCLE. I'll have to wait until Monday to speak (hopefully) to someone there to try to figure out how to be able to press a button, get the alarm to sound, press a button again, and have the alarm stop. That's all I want it to do; that's what I was promised it would do, and many reviewers have used this thing that way. Fingers crossed. I'll be happy to add an updated review if the company helps me figure out this very simple function for their device that Walmart assured me this alarm was capable of. If you plan to buy this device, all I can say is- good luck to you.