Check the listing for details. Whistle Go Dog Or Cat GPS Tracker. Condition: New. Listed at 19.99 USD. The Whistle Go Dog GPS tracker is a reliable and innovative device designed specifically for tracking dogs, cats or other pets. With its GPS feature, pet owners can easily monitor their furry friend's location and ensure their safety. Compatible with Android operating systems, this tracker allows users to keep a close eye on their pets at all times, providing peace of mind and convenience for pet owners. Whether the pet is running off or simply exploring, the Whistle Go GPS tracker helps owners locate their beloved companion quickly and accurately. I purchased this tracker but went another direction, so I never set it up or used it. The box was only opened to photograph its content for this sale. Sold as is with no guarantee or warranty of any kind, and no returns.