Waterproof Pet GPS Tracker 1. Comfortable collar design, your pet can take it anywhere. 2. You can use your mobile phone to track the target location in real time, so you are not afraid of pets getting lost. 3. When the pet is in an area without GPS signal in the house, the WiFi positioning function can be activated on the APP, and the accuracy is higher. 4. You can check the time, location, etc. at any time on the mobile APP, check the location in real time, and accuraty locate the historical track of the route you have ped. 5. The pet trav range is set on the mobile APP. Once the pet leaves the set area, an alarm will be issued. 6. Parameters: Charging method: USB Battery capacity: 800mAh Quad-band system: /900/1800/1900MHz Operating System: Android and iOS Positioning method: GPS+AGPS+WiFi+LBS