Frienda LED Ultrasonic Dog Trainer Device 3 in 1 Stop Barking Stop Bark Handheld Dog Training Device (Yellow)

It worked, then failed.
For months, we had problems with our neighbors’ three dogs which used to bark at us every time we walked outside. Not anymore! This devise stopped them in their tracks! We tell them to be quiet, wait a second and then hit them with this silent, but effective blast. They immediately turn and run away! Lately, they’ve even stopped barking altogether when we walk on our property. We would highly recommend this cost-effective solution to others with similar barking problems.Update: It stopped working after two months. The light still operates, but the sound stopped completely. We know this because our own dog no longer reacts to the device and he was VERY sensitive to it when it was new and activated even for a split second. I also wear a cochlear implant and could hear the high frequency sound when the device was working.We plan to order this product again because it WAS so effective and relatively inexpensive. We just hope the new one lasts a lot longer than the first.

Attention! Coyote tested.
I was looking for something to deter my dog from some annoying behavior, and I didn’t want to spend $20 for a can of air. The price was right and it sounded plausible, if not completely promising. I thought it was worth a try.Forget the instructions, they are written by someone whose first language is something other than English, and while not totally informative, are highly amusing. (“Attention: Do not irritate dog very often when they already stay quiet or in noisy environment. When the dog bark or attempt to attack you, the effect of ultrasonic training device is best.”–I’m not sure how you get the dog to attack you, but you might want to try it with barking first.)It requires a 9 volt battery, and will double as a flashlight. I’m not exactly sure why, but it’s handy if you’re stuck in the dark I suppose. The device is bright yellow and has 3 settings, which are difficult to see because they are molded into the plastic. The top one is just the flashlight, the middle one is a picture of a dog standing/dancing on it’s hind legs. Maybe that’s for training? The third setting is a dog lying on it’s side, what I call ‘dead dog’ mode. I use that one when I mean business. And, oddly, it seems to work. I started in ‘standing/dancing dog’ mode and my dog definitely reacts to it, it gets his attention and he’ll usually stop what he’s doing, at least temporarily. He may return to the behavior if it’s something he truly enjoys, like playing tug of war with the leash, and I’ll hit it again. That’s usually enough. If he’s being especially stubborn, or if I think the behavior might hurt someone (jumping on them in greeting), I’ll resort to ‘dead dog mode’ and that will usually do the trick. He stops. I’ve even used it at the dog park when a group of dogs were getting out of hand, and after hitting the ‘dead dog mode’ button, they stopped. I’ve even tried it, in ‘standing dog’ mode when some dog is barking at us when we walk by. It stopped. Now, most of the time, just seeing me pull the device out of my pocket is enough to get my dog to stop whatever annoying thing he’s doing. And I threaten him with ‘dead dog’ mode if he doesn’t straighten up.The bottom line is that this crazy thing actually works, at least on my stubborn boy. I try to use it sparingly because I don’t want to quash his joy, just keep him from doing things that can cause damage or injury. (the leash pulling is hell on my elbow!) I don’t know how long it lasts, but I’ve not drained a battery yet. And the flashlight is useful as it lights every time you push the button, so the dog thinks he may get blasted when he sees the light and that’s enough to stop the behavior. I can’t claim it works every time, but it works enough of the time for it to be worthwhile. If it works on coyotes, I’ll let you know.Addendum: This morning I had an encounter with a coyote as I was walking my dog, the coyote was in the bushes about 50 yards away, with eyes on me, another dog walker, and our dogs. I pulled out my trusty Frienda zapper, pointed it at the coyote set on ‘dead dog’ mode, pushed the button and the coyote bolted immediately. So, I think I’ll up my review to 5 stars. Anything that deters a coyote is my best friend.

Ease of use
Ease of use seems to be a good deterent.

It works! A freaking miracle!
I hesitated to buy this based on other reviews, but it absolutely works. It seems plenty sturdy, although I’m not fond of battery compartments that have a sliding lid. I love that it has three settings. First is a flashlight, the second stops barking but doesn’t panic your dog, and third is to repel dog attacks. My two dogs ( I have three, but one is deaf from birth so she doesn’t bark much. Instead she make adorable little pig grunt noises.) anyhow, my two hysterical barkers are also sensitive to the slightest whistle noise and panic for hours if the smoke alarm battery reminder chirps. I’ve tried other bark silencers, but they also scare them. This one is amazing. If they’re hysterically barking I say “quiet” and tap the middle button. Instant silence and calm. It’s a freaking miracle.

This was a bit fiddly for me to get the battery in, but I suspect that’s more to do with me than the product, and I was in a hurry.My neighbours acquired a puppy some time ago. Nice dog, but one of those little yappers. In lockdown they decided to get another. New pup learned yapping from older dog. Unfortunately neighbours haven’t done much training.If I went out to the bin, opened the back door, let my old non-barker-except-for-burglars dog out, they yapped through the hedge. That’s escalated to yapping if I turn a light on at that side of the house.My temper has been sorely tried.This has worked very well! Only took one blast, they decided to retreat, and now keep their distance. Still yapping, but further away. Fair enough, the product only operates within a certain distance, but it has soothed my nerves.Even if I never need to use this again, it’s money well spent.

Lo sto usando durante le passeggiate in campagna e devo dire che funziona “quasi” sempre, a volte i cani li vedo da lontano e attivo gli ultrasuoni, allora i cani si ritirano in silenzio, quando invece i cani sbucano all’improvviso devo comunque fermarmi e non sempre gli ultrasuoni sono efficaci, con il cane a pochi metri risulta più efficace la classica borraccia d’acqua con un getto diretto sul muso del cane, ma nel complesso questo dispositivo fa il loro lavoro che promette.