Silent Whistle
This lightweight, compact, ‘silent’ whistle is ideal for dog training, both indoors and out. The High Frequency Whistle is particularly appropriate for noise-sensitive breeds such as Border Collies.
It should be noted that this whistle is just audible to the human ear, essential for gauging its efficiency.
It should be noted that this whistle is just audible to the human ear, essential for gauging its efficiency.
