Curtail your dog’s excessive barking with this harmless; PetSafe PBC-102 No-Bark Collar, Petsafe PDBC-300 Deluxe No-Bark Control Collar and all Petsafe Bark Collar the easy-to-use nylon collars. Just insert the included 6-volt battery into the lightweight receiver, and fasten the adjustable collar around the dog’s neck. When the dog barks, the collar senses the vibrations in the pet’s throat and emits a mild static shock and an audible warning beep. There are 6 progressive correction levels, so if the dog barks again within 30 seconds, the next shock will be stronger, though not too strong for small or timid dogs. For safety, if the dog barks 15 times in less than 50 seconds, the collar shuts off automatically for a period of 3 minutes. Not only those items, now you can discover all other Petsafe products from our Fence Petsafe Bark Collar Remote Trainer; the Online Store and buy them at chaeap price such as Petsafe PDLDT-305 Deluxe Little-Dog Remote Trainer, PetSafe PDBDT-305 Deluxe Big-Dog Trainer and more... all items are inexpensive.