Dual-mode design: Mode one, standby for 7-8 hours, the tracker will usually update the location of the pet dog within 1 minute in standard mode; Mode two, standby for 2-3 days, the tracker will usually update the location of the pet dog within 30 minutes in default mode. Family number: Not only can you use the fitness tracker for small pets, you can also enter the guardian's mobile phone number to keep in touch through the best pet tracker, it can set a total of 7 family numbers, and the wireless smart pet tracker will track the pet's footsteps. Electronic fence: Set an area around the locator and alarm immediately when the pet enters and leaves the area. Enter the electronic fence name and set the fence in and out alarm for the real-time pet tracker. Callback function: Set the callback number. Then click the "OK" button. The best location wireless smart GPS tracker will automatically call the phone number you set. Historical track: Record the pet's track within 3 months. You can easily view the pet's walking route. Firewall setting: The factory setting is off, turn on this function to help the device avoid harassing calls.