The PetSafe PIF00-17804 Guardian GPS + Tracking Dog Fence Collar is a wireless electronic fence collar designed for medium to large dogs weighing 30 lbs and up. It features live GPS tracking, ensuring your pet's safety and location are always known. With a battery life of up to 72 hours and a rechargeable lithium-ion battery, this collar provides peace of mind for pet owners. It is compatible with all dog breeds and comes with a 1-year limited warranty from PetSafe, making it a reliable choice for those looking to provide a secure environment for their furry friends. Open box