I wonder if it’s possible to create a device that emits an unpleasant ultrasound in response to a dog’s barking (for instance, at night) and sell it to owners who would like to train their dog not to bark? Technically, it seems simple.
I wonder if it’s possible to create a device that emits an unpleasant ultrasound in response to a dog’s barking (for instance, at night) and sell it to owners who would like to train their dog not to bark? Technically, it seems simple.