<b>The WBGPS30 GPS Locator is an obvious best choice for Economic GPS tracking application. </b><br> This Tracker allows for covert tracking, Even if someone finds the GPS tracker inside bag, no one can tell its a GPS tracker. <br> This is most covert GPS tracker you'll find anywhere. With proprietary low power GPS technology, <br> the WBGPS30 will run for up to 30 Days with seldom use on a single charge. Frequent use will <br> shorten the run time. <br> <br> <b>WBGPS30 GPS Locator will work anywhere in the USA. Using the latest in GPS mapping </b><br> technologies from Google EarthTM, It's exact location can be shown on satellite-based maps <br> on your smart phone. No setup required. <br> <br> <b>The GPS tracker uses third party wireless cellular network to send GPS coordinates message </b><br> to your smart phone, An Pre-activated wireless SIM card with phone number (Will at least give you <br> 6 months service) is Pre-installed into the tracker. YOU do not need to add any funds to this SIM card <br> for at least 6 months in the future in order to keep the tracker working. When you need find tracker, Just <br> use your smart phone text a command to the tracker's SIM card phone number, The GPS tracker will reply <br> back a text message with the tracker location information and Google Map to your smart phone, after you <br> get the message, Just click the message on your smart phone, The Google map will open and show the <br> tracker current location. <br> <br><b>All the trackers are 100% tested in The US before shipping <br> You can get target's latitude and longitude by SMS and check position by google earth on your smart phone <br> An Pre-activated SIM card is Pre-installed into the GPS unit for you easy start, <br> 2.5 meters horizontal accuracy. <br> Customer must have Smart phone with 4G/LTE service to use this track.