- Adjust the tone and whistle the whistle to send your dog. Whistle with a nut and a screw that can adjust the rhythm when you turn. Keep testing until your dog loves it, now you will understand which frequency is the right one to train your dog.^ 2. Use the dog whistle with different sequences to train your dog. For example, a long burst could mean “run”, while short bursts could mean “sit”.^ 3. Keep your whistling habits consistent and your dog will always know its meaning.^ 4. It is recommended to use the whistle in a quiet place to avoid that you cannot hear well in noisy places.