I am a Private Investigator who uses GPS trackers on cases. I purchased one of the most expensive units just to find out they will not service their units. Their web page advertises that they have immediate service replys. I have had to e-mail this company many time just to get a reply. Their techincal supports *** as well as their employees that I have talked with. I have money, this is not the issue, I just asked that they test the unit they sold to me which I continued to get the same reply, "well we know that it works". I would not reccommend this company to anyone for the purchase of tracking equipment.