How to use: Loosen the sonic adjustment screw. While blowing the air in from the air inlet, turn the adjustment lever to adjust to the optimum pitch. After the adjustment lever is turned, tighten the sonic adjustment screw.
Effective pet training: The whistle can be adjusted to produce a variety of different frequencies of sound, corresponding to different passwords, and this product is suitable for dogs of any age and breed.
ADJUSTABLE PITCH: Dogs can’t hear all frequencies, but you can adjust the pitch for corresponding frequency to fit your dog the best.
The sound will not annoy you and who is around you, it is an ultrasonic sound that is fit dogs well.
FREE LANYARD STRAP – You can hang it on your pants and bags to avoid losing it, similarly, lanyards can also prevent whistle from being lost, when training dogs, it is more convenient for you to free your hands to interact with the dog.