CHNLML Dog Barking Control Devices,3 Frequency Sonic Bark Deterrents ,Rechargeable Anti Barking Device 30Ft Dog Barking Deterrent Ultrasonic Dog Barking Deterrent Stop Bark Box, Black77

This thing works great on my 100 lb Bull Mastiff. My main reason for not giving it 5 stars is because it goes off a little too easily. For instance, if I move it and set it down in a new place, it goes off or if I close the door without insuring it's super soft, it sets it off. There are some other things that set it off but you get the picture. All in all, if you are careful not to trigger it on your own, this thing works great when the dog barks!

This goes off when I shut the door to my room or with semi-loud noises. It doesn't only go off with a bark. My dogs ignore it on all three settings, and its in a small room about 8' away from them.

First of all, I don’t think this product works. Other than a blue indicator light that shows when the sound is being emitted, you just have to trust that it’s working because you can’t hear a thing. My dog did not seem to be affected very much by it, and I also noticed the blue light that indicated the sound was going off blinked just from normal family noise.Since this product doesn’t seem to work, and if it did, we basically torch, our dog, by having conversations, I would not recommend this product!

This product helps to reduce barking, obviously it won’t silent your dog but it helps to reduce nonstops barking for everything

Too loud

I have three dogs and two are Miniature Pinschers that bark at everything. Over the years we have trained and tried a variety of methods to manage it but we still had explosions until this thing. I honestly cannot believe how peaceful and relaxed my dogs are now. The first day it was a little shocking for them and they scattered but quiet followed. I have had it just a few days and I keep it near the front entry where they get most triggered. If out of range they still bark which is fine but the problems of door aggression with package delivery or out of control barking has ended. And when I am WFH on Zoom, I know I can put this nearby to manage them. HIGHLY RECOMMEND!

WORKED ONE DAY ONLY, Suppose to charge but blue light came on after 2 hours. Suppose to work for many days but needed charging again. Same thing over and over. Here's the kicker it states "any questions contact us" but there is not a name on the box. DON'T BUY ANY OF THEM! Stupidly I tried 4 thinking they were all different. None of them had an address or phone number. Some were purchased on Amazon. I wasn't aware of "other sellers".

clearly has made a difference with my dog. he continues to bark some...but not like he was. good training device!