Household combination tool ultrasonic dog drive dog training yellow and black

Features:
Simply turn the switch and use.
Effective, but not harmful to humans and pets.
Can be used at ordinary times, with an easy-to-carry strap.
Great for training a wide variety of dogs such as pets, police and shepherds.
Train your pet to obey, correct wrongdoing, and stop barking.

Completely safe without harming the dog.
No use of liquid propellants.
So this is the most humane dog to protect yourself from aggressiveness.
It emits a high-pitched ultrasound that cannot be heard by human ears, but dogs are very annoying.

specification:
Material: Plastic
Color: yellow
Dimensions: 13 x 4 x 2.8 cm.
Type: Bark Deterrence