PetSafe Deluxe Bark Control Collar, PDBC-300. Harness, Bark-control, Duel-detection, Waterproof Pet Supplies / Shops Durable, waterproof bark-control collar with sound and vibration sensitivity Patented Perfect Bark detection ensures only your dog?s bark will set it off Low-battery indicator 18 levels of correction lets you adjust to your dog?s personality Includes 6-volt battery, instruction manual, and limited lifetime warranty