We bought this motor boat to complete the order playmobil our son to play in the bathtub. There is no switch, slightly unscrew the base. In a bathtub is too small, or else would have had the propeller rotates slower: not adjustable. By cons in a small pool, it must be fun to play with Playmobil to do .. the neighbors next summer! Otherwise playmobil quality, robust and well finished.