Sound Defense K9 Warning Device

I now do not have to call the neighbour to keep their dog tied up. I am now able to cycle and run past their house without being petrified their large black dog will attack me. I used it 3 times and the dog stopped and I was able to continue biking or running. No excuse now to stay home

Realmente no ahuyenta a la mayoría de los perros, solo muy pocos se ven intimidados por este sonido, poca efectividad

i feel much safer when walking around outside with this. it works so well that i purchased another for a friend who rides her bike in neighborhoods in laguna beach and sometimes deals with dogs. i will be purchasing a third for my mom and a fourth for another friend soon. it is very loud, but this technology has embedded a large range of frequencies that covers most dog breeds, most of which are inaudible to humans. how nice it is that it includes a people-predator-deterrent frequency as well. i wear earplugs around my neck when taking walks to protect my ears in case i need to use it.7/31/15 update: i never did buy another of these for my mom, but am revisiting the idea. i live in an isolated area, and a pack of dogs has formed. dogs can become bold, dangerous, wild and rabid when they get into packs and roam the country. the other morning i stepped outside and there they were. i yelled and they ignored me. i mean, there were several of them, so what had they to fear from me? i remembered this sound gun and ran inside to grab it. i came out blasting and the dogs took off running as fast as they could go. i hit it a few more times to make a lasting impression. they kept on running and i haven't seen them since; but they will probably return, and when they do, i will not forget to use this as a deterrent. it doesn't seem to affect cats, at least not my cat, thank goodness, maybe because cat's ear mechanics are more deeply embedded and protected from outside noise than dog's ears. since i have a cat now, keeping potential predators away from the house has taken on heightened importance. she is an indoor cat, and were she to accidentally get out, she would not be skilled at protecting herself from coyotes or dogs, or for that matter anything bigger than she is.

I used the warning devise on an aggressive dog and stopped the animal from attacking me.

Bought this after getting nipped while bicycling. It carries well on the bike with the attachment (purchased separately). I ride gravel roads and it stays put. It is high pitched, loud, wavering and piercing. Doesn't matter what direction the wind is blowing which was one of my main considerations deciding between pepper spray and this.I have used it 4 times on dogs in the past several months and each time they backed off. The most determined dog I pass regularly came within about 6 feet and wouldn't come closer. He didn't like it and was growling but he kept his distance. I kept it going directly at him till he gave up. He doesn't sit at the end of the drive anymore when I go by. A little disappointed that I haven't had a chance to use it on the one that nipped me. Found that it even works on red winged blackbirds. I blast them when I see them on their glide path coming towards me or hold it over my head when they attack from behind. They eventually seemed to get the idea on the routes I regularly take. I grab it when coming up on dogs I'm not sure about but only use it when they come threateningly close.It is kind of a confidence boost that I'm not defenseless. When I first received it I tested it out in the yard pointing it away from the house. Even though it was some distance and pointed away from them, my own dogs which were close to the house went to the door wanting to get away from it. The attachment is easy to switch between bikes. Easy to use and the battery has lasted all summer.