It's very simple, you make a contact switch, you make a proximity switch,
When a dog touches or approaches, it will trigger the horn and make a short sound.
Gradually increase the volume of the speaker and reward the food.
Train the dog to have fun with it, and then trigger the small firecrackers.
Addicted to dogs, shaking his head all day.
I am so happy, so happy, so obsessed, I can't put it down, I can't put it down, I can't put it down, I am so happy, I can't put it down, I can't put it down, I can't put it down.