DAPRIL Flea Collar for Dogs, Flea Collar for Dogs & Cat Puppy & Safe Natrual Hypoallergenic & Waterproof Dog Anti Flea Collar (Pack 2) NEW ADVANCED DOG TRAINING COLLAR & REMOTE - advanced design that assures control on longer distances (30% more than the other electric shock dog collars). The ultra-durable, waterproof collar assures safe use for years to come.