GGG Pet Dog Puppy Ultrasonic Sound Training Deterrent Stop Barking Obedience Whistle Adjustable Tool

Description:
The light sound is audible to man which helps to train the pet.
It has a nut and screw to tighten or loosen the screw to adjust the pitch
Ultrasonic
With a key ring loop,portable
Color: Silver
Material: Brass
Size: About 5.5cm * 0.8cm
Quantity: 1 Piece
Using Tips:
Gently blow on the whistle while your dog is sleeping, and adjust the pitch to a frequency which your dog can hear. If you see your dog perk up, that is his frequency. Various sequences could be used to train your dog. For example, two long bursts mean ¡°come¡±, two short bursts mean ¡°stay here¡±, one long burst and one short burst mean ¡°sit¡±. Keep your whistle commands consistent until the dog know what you want him to do.
Package Listing:
1 *Pet Dog Training Whistle
The light sound is audible to man which helps to train the pet
It has a nut and screw to tighten or loosen the screw to adjust the pitch
With a key ring loop,portable
Size: About 5.5cm * 0.8cm
Package content: 1 * Pet Dog Training Whistle