[GPS Dog Cat Collar Without Subscription] You only need to install a 2G network SIM card in the GPS tracker and configure the corresponding APN information. Then you can login to the free phone app or PC platform to track your dogs and cats. [Real-time Tracking and History] Follow your dog and cat’s adventures in real-time. If needed, you can even call the tracker to know the current location of your pets and see where they are. [Global Location] Use GPS dog trackers in 150+ countries worldwide. Manage all functions via our free GPS app for iOS and Android or any internet browser [Waterproof for every adventure] The Dog Cat GPS Tracker is very robust and IP66 waterproof, ideal for livestock.