Features:-Excellent Design: It is compact and light, and will not cause any burden to pets, it looks very beautiful.-GPS Function: The pet tracker can locate your pet anywhere, you can see the location and movement of the pet on your phone.-Fence Security: You can define an area around the locator, alarming immediately when the pet enters or leaves the area.-Remote Listening: Defining the guardian's cell number to keep in touch.-Callback function: Defining the callback number. And click on the suresuresure button, the pet tracker will automatically call the phone number you set.-Water resistant design: It is water resistant and suitable for use in a variety of environments.-2 location modes: StandardMode: local upload every hour, 3 - 5 days of waiting time; needMode: upload location every 30 seconds, 12 - 15 hours of standby timeSpecifications:Material: abs + rubbeNetwork: gsm / gprsBattery: built-in 500mah li-ion batteryGPS accuracy: 2 - 5mStorage temperature: -40 - 85 Working temperature: -20 - 55 cTotal necklace length: 65cmAdjustable collar circumference: 43 - 58cmSpecifications:This is a very good pet tracker. With the gps function, it can tell you where your pet is at any time, preventing the loss of your pet. It can record the tracking of the pet within 3 months. You can even call the pet tracker by setting the family number. This is absolutely the best choice for youPackage Includes:1 * GPS Tracker1 * Manual 1*Collar