Acme dog whistle no.211.5, from England, ideal for dog training, robust material, standard frequency, loud and far-reaching

I've got a border collie that I'm starting to work a little. He responded to the pitch immediately, which is alot higher pitched than me normally whistling without a whistle. I think it is going to help me when gathering yearling cattle a Horseback. Especially, when he gets way out in front of me. I'm satisfied. Good product. 👍

Awesome training whistle. Very easy to blow, loud and distinct. I'm very pleased and would recommend. My only complaint is that I wish it came with a lanyard.

I have purchased both the 211 and the 210 in the past. I mistakenly ordered this from my previous purchases but the higher pitch is the 210 Apparently not frequency tied to the numbers as in higher number is not higher frequency.' It is fine. Just too low a pitch. Humans can hear it easily

it's definitely not quite what was expected would prefer a silent one.

Very cheaply made plastic, BUT works well and my dog came right away because I was able to imitate the special whistle I do so that he knows it is me xalling him. I used this whistle multiple times today while me dog was outside and I was on the ither side if the house in the livung room. He came running in theough the dog door to find me. I recommend this product two thumbs up