1. Trigger the ultrasonic circuit through the barking of the dog, and send out a harsh ultrasonic wave for 5 seconds (the human can't hear it, the dog can hear it), making the dog feel very uncomfortable (no harm to the dog).
After repeated iterations, the dog establishes a conditional reflex, knowing that the sound wave appeared because of his own arrogance, and then no longer screams so easily.
2. It is equipped with a power adapter and plug-in. No need to change the battery frequently.
3. Effective distance 5M, very suitable for hotels, restaurants, courtyards, garages, and other places.
Product Name: Outdoor Ultrasonic Drive Dog Stopper
Material: ABS plastic
Power supply: AC 9V 600mA