VisionOneGPS Personal GPS Tracker (T-Mobile 2G SIM Card Required) - Real Time Tracking, SOS Alarm, 2-Way Voice, Spy Mode, Geo-Fence, Fall Detection, Speed Alert, GPS Tracking for Kids/Seniors/Personal Location alerts with simple text commands - sends back Google maps location/address as well as Lat/Long coordinates to your phone Real time GPS tracking with online web portal using Google Maps; Call the GPS Tracker using the 'Silent Call' feature (SPY tracker mode) .For Users who have issue with the mobile and/or online tracking applications, please follow the set-up instructions that accompany the GPS Personal Alarm Provide to an elderly person. This personal tracking device has a fall monitor, can track movement, can set perimeter boundaries (geo-fencing), and has an SOS button to push in the event of an emergency. BEWARE OTHER SELLERS ON THIS LISTING. THEY DO NOT OFFER THE SAME VISIONONEGPS SUPPORT AND WARRANTY OPTIONS! Place the GPS Tracking Device in your luggage or on pets collars - so you can track them from anywhere in the world to a few yards. Place in your car and set GPS system speed thresholds - sends text alerts to nominated numbers if speed exceeds the set value SOS/Distress alarm will send text to (max 3) nominated numbers, and also calls (max 3) nominated numbers. It enables 2-way voice communication, just like a phone call. Protect yourself, your child, your car etc.