2 Pack Dog Whistle, Dog Whistle to Stop Barking Neighbors Dog, Adjustable Ultrasonic Silent Dog Whistle, Professional Recall Dog Training Whistles, with Lanyard (Black)

I wasn't sure if our 1 yr old Lab would respond but she did right away! We have a 1/2 acre place and she comes running.

I purchased the whistle to teach my dachshund that he can play with his sister without barking constantly. It has made a good first impression. I put my dogs out to play in the yard because I wanted to allow myself and my husband to know what it sounds like. Within mere seconds of blowing the whistle once - both dogs were waiting at the door. I am praying it works just as well with barking. I would appreciate if it came with an instruction manual for adjusting the pitch. I understand you adjust the nut to increase or decrease frequency. However, there is no way of knowing what adjustments make it louder or quieter. It would just be nice to have that information. Overall, I am praying this works for our Milo.

These are not silent at all. They do absolutely nothing for dog barking

These are very simple, easy to use and compact. Mostly metal minus the plastic cover. I was under the impression us humans would not be able to really hear the whistle, but you definitely can. Dogs probably hear it much louder but does still seem much louder than I anticipated. Dog DID react to this but not in a super negative or dramatic way. I will have to look at the directions to adjust the pitch, so be mindful of that and cautiously/gently test this on your dog.

Product appears very well made and I loved them. Only problem is that one of the whistles does not work and does not make a sound.. so I paid double the cost for one unless the vendor replaces it. I hate to ask that on such a small order.

It works grear

It's not silent and it doesn't work

Doesn't really work. My dog was only mildly reactive, so it doesn't serve it's purpose for me.