I was surprised at the quality of this object, the display of the burden of looted is very accurate. The utilisitation is pretty easy, just put the looted in the corresponding slots, it's pretty instinctive. Do not turn anything it's just placing a plunders test, this may open the question if the battery used to allimenter the device is not drained when not using the device. For me it is a good object especially if you look at the price.