PetSafe Deluxe Small Dog Pet Fence Collar PIG00-10778 Product Description The Deluxe Little Dog Pet Fence Collar is the world's smallest and lightest dog fence collar. With Five Levels of Correction including Tone Only, this is a true breakthrough in pet containment. You can program the PetSafe Deluxe Little Dog Fence Collar to exactly the proper correction level for you pet. This receiver can be used for a pet with any temperament. If you want the smallest receiver on the market, yet have the ability to use it with any pet, big or small, timid or stubborn. The Deluxe Little Dog Receiver comes complete with QuickFit collar, batteries and Test Light Tool. It is compatible with all PetSafe, Radio Fence and Pet Guardian Brand underground fences. You might want to get extra batteries with your order since this collar qualifies for Free Shipping. Initial system set up and pet training will create more drain on the batteries than normal. Typically the batteries included with the receiver will need to be replaced after 30-60 days. Battery life under normal usage averages 4-6 months. Features: Five Levels of Programmable Correction Level one is warning tone only - ideal for initial training or very timid pets Levels two thru four are for easy or average to train pets Level five is for very hard to train or stubborn pets Testing tool Low Battery Indicator Light - Lets you know when the batteries need replacing. Levels are easily changed with a push of a button on the receiver ASIC Microchip, A chip the size of a match head with 3000+ filters to prevent unwanted correction. QuickFit buckle allows for a quick release and a perfect fit every time. At only 1.1 ounces the Little Dog Receiver is one of the smallest and lightest receiver available anywhere The Little Dog Receiver is completely Waterproof Test Light Tool Lifetime warranty Petsafe RFA-188 Battery