Have I bought the machine because I wanted to use my Logitech Z2300 in the car for the trip from Frankfurt to Berlin. I could not imagine that I blechernden hours with standard boxes in the car driving to Berlin 6 to me simply.
Just plug into the cigarette lighter and bang it worked. Clearly it has not brought the full power from the cigarette lighter, but it worked.
The cigarette lighter of the converter takes (only) 150Watt and who wants to have more must put him with the short supplied Klemmem directly to the battery.
The battery is also very useful display so you can see whether you have to make it slow to conserve battery.
A bit noisy but the fan, but at a faster drive or music in the car no longer hear this.
important is not that you can not deposit the part under jackets etc. Go there where it gets good air and then the thing is really handy.