Cute Lightweight GPS Dog Cat Pet Realtime Tracker GSM/GPRS Finder Locator Alarm Waterproof Collar black
GPS Function: the pet tracker can locate your pet anywhere, you can see the location and movement of the pet on your phone.
Security Fence: you can set an area around locator, alarming immediately when the pet getting in or out of the area.
Remote Listening: setting the guardian's cell phone number to keep in touch.
Callback Function: setting the callback number. And click the 'sure' button, the pet tracker will automatically call the phone number you set.