Keep your pet safe and secure in your yard with the PetSafe 1/2-Acre Radius Wireless Pet Containment System. 1/2-Acre radius gives you pet plenty of room to roam about. If your pet gets too close to the coverage area boundary, a sound signals to inform your pet. If your pet ignores the sound, they will receive a mild static correction to encourage them to stay within the boundaries. Give your pet that same cool experience with this dog cooling mat, made from soft, puncture-resistant gel, this dog mat is comfortable for your dog or cat and helps keep them cool. Simply lay out this pet mat to give your pet instant cooling relief. • Provides continuous relief for up to 3 hours • Automatically recharging cooling pad • Non-toxic, completely latex-free • Material is 100% safe for animals, adults and kids • Flexible mat folds flat