Acme Thunderer Plastic Whistle

You have.To use a little more air to get the loudness. Use them with dog Retriever training.

The answer is absolutely yes. The whistle has its own tone and our Chessie in training responds wonderfully. The tone is apparently right on target for his hearing.

Works well for my dad who helps take care of our new pup.

great training whistle. use it to direct my GSH hunting quail, chuckers and pheasant.

This whistle will blow your ear drums out! Just what I was looking for.

Works great if you are working bird dogs, this is the one we always used when I was training processionally.