The PetSafe Basic Static Bark Collar is the perfect solution for dogs that bark excessively The bark collar requires no programming and includes progressive correction slowly increasing in static correction levels until he stops barking The collar is safe and effective with six adjustable levels of static correction The vibration sensor detects the dogs vocal cords moving to help ensure no false corrections and the automatic safety shutoff stops correction after 50 sec The collar is waterproof, submersible up to 5 ftmaking this collar perfect for dogs that like to play outdoors The PetSafe Basic Static Bark Collar allows you to live peacefully with your dog