The robomow rx20u features a weekly program which means that the mower follows a set schedule leaving the base station mowing the lawn and returning to recharge all by itself this robomow has also been designed with a floating deck which is designed to provide flawless coverage on any terrain along with the rear glider for maximum manoeuvrabilitythe off lawn base allows you to utilise every piece of grass and the child lock facility prevents children and others from operating it freelyplea