Bark Collar Static 16635 Petsafe Your quiet time is waiting. With 15 levels of static correction, the PetSafe® Bark Collar is made to help discourage bothersome and excessive barking. This collar's built-in temperament learning adjusts to how frequently your pet barks. For instance, when your dog barks, the collar's lowest level of correction will be applied. If he keeps barking, the correction level will rise; if he keeps silent, the correction levels decrease automatically. Your pet deserves the best. You can rely on PetSafe® to keep your pet safe, healthy, and content. Key Features 15 levels of progressive correction adjust automatically Sound and vibration sensor detects barking Automatic safety shut-off Waterproof LED low battery indicator, so you’re never caught off-guard For dogs 3.6 kg and up Adjusts to fit neck sizes up to 68 cm For dogs over 6 months old Uses PetSafe® RFA-18-11 replaceable battery SAFE, EFFECTIVE, TRUSTED : Our static collars are part of our ongoing mission to provide the best tools, education and support for pet parents seeking safe, successful, expert-recommended options to meet each dog’s unique training needs System Includes Bark Collar 2 6-Volt batteries Long contact points pre-installed in collar Product manual