This lightweight, compact, "silent" whistle is ideal for dog training, both indoors and out.
Recommended by Dr. Roger Mugford.
"Silent" whistles are particularly suited for training noise-sensitive breeds such as Border Collies.
NOTE: this whistle is slightly audible to the human ear, which is essential for gauging its efficiency. It is possible to alter the pitch of the whistle by using the adjustment screw.
Comes with a training guide pamphlet.