This is hands down the worst company, device and customer service available. The device will drain your battery ever day and then when you get locked out due to their faulty equipment, they will charge you 75 dollars to get it back up and draining your battery again. I would give more info but I have to go buy a battery tender so I can have a working vehicle when I get back from out of town for work this Thursday. Worst decision I have ever made and thats over my drinking and driving to be in this mess... absolutely horrible...