●TRAIN YOUR PET IN A SHORT TIME – clicker and whistle are great communication way with your dog, perfect for behavior and obedience dog training ●DOG WHISTLE FOR TRAINING - It doesn’t matter what breed your dog belongs to, it provides a harmless option to train your dog and build a greater communication ●AUDIBLE TO HUMAN EAR – A peace of mind for pet parents ensuring that your dog can hear your commands just as well as you do - it won’t ever hurt your dogs’ hearing ●FUN AND EFFICIENT TIME WITH YOUR DOG - Backed up by dog trainers and science, our clickers and whistles provides positive reinforcement for easy and effective dog training ●CONVENIENT TO CARRY AROUND - It is small and lightweight, so you can put it on a key chain or in a pocket