Hi, found as already written Freytech the Tracker can be configured only via SMS which of course costs money. Each command you to send to the tracker comes naturally also an SMS as confirmation back thus arise at every command costs of two SMS should be aware of any. I think that's part despite everything SUPER because a built-in GPS tracking in a car theft protection costs from 290.- and can absolutely nothing else and is just so operated as the Tracker GT-280th And since I do not always I can the tracker need only to use him as an anti-theft device SOS hiking / biking. The included software really evaluates only the coordinates of the tracker sends SMS, the only advantage of the included software is actually that you can also view the data from the position determination via GSM / LBS, which is necessary whom the tracker time has no GPS reception , The software does not need to be installed but not running Linux or Android so only under WIN capable. For this you need other apps. But as I almost always have my Garmin handset with the GPS coordinates but I can at any time evaluate and do not need necessarily to a PC. So it should have been looking for more information just check out Google and the user downloading, because you get all the missing information. Greeting
