And in contrast to other variations of Puppy repellents which have paper diaphragms, ours is Water resistant, so it can be used outside 24/7 for repelling canine and wild animals. We dunked it, and it worked whilst beneath water for half an hour without having an issue. Pet dog training http://edgarotxzy.blogofoto.com/18219969/a-secret-weapon-for-dog-training