Petsport USA offers the Spotted Pro! Smart Pet Tag. When a person finds a pet with the tag, they simply scan the QR code on the tag and instantly receive the owner’s contact information. Any time the pet is scanned, the owner receives its GPS location. All they need is a mobile phone. There are no monthly fees and no batteries, and the product has unlimited range and worldwide tracking. Near field communication (NFC) technology helps owners locate their lost pet quickly and easily, the company states. The tag is compact, lightweight and waterproof.