So, I bought the device 3 months before the start of our summer vacation to distract my children from agonizing waiting on long car rides when needed. It was worth it! Thanks to the other reviews I was well prepared, films are shown without any problems and also radio plays can be enjoyed thanks to headphones used, without us having to watch the parents appropriate X times. The attachment to the headrest turned out to be much less problematic than previously thought ... simply the horizontal belt "pre-install" (already closed, but not too tight), attach the vertical, but leave it open, "invert" on the headrest , draw horizontal belt tight thereafter include vertical and also streamline-done! (And all alone and swiftly, would value should just be a surprise for the kids. Tell the unit at any time, really okay!