Silent Dog Whistle
Your dog whistle can be tuned to get the best response from your dog. With your dog in sight, blow into the whistle in short blasts. Screw the tuning pin in an out whilst blowing your whistle until you get a strong response from your dog, indicated by them whining or cocking their head. Once you have found the optimal position, fix the tuning pin by tightening the locking collar against the whistle body.