-Excellent Design: It is compact and lightweight, does not burden pets and looks very cute. -GPS Function: The pet tracker can locate your pet anywhere and you can track the See pet’s location and movement on your phone. Callback function: Set the callback number. Then click the OK button and the pet tracker will automatically dial the phone number you set. -Security Fence: You can set up an area around the tracker and it will alarm immediately when Pets enter or leave the area. -Waterproof design: It is waterproof and suitable for use in various environments.