Auto-Lock-Swivel Front Wheel : makes it one of, if not the easiest handling electric trolley on the market today. Turning is very easy now, on manual or remote modes. Easy maneuverability allows the buggy to be controlled with the very lightest of touches. Waterproof : Membrane switches and sealed electronics for waterproofing. Safe Start : prevents the motor driving the buggy until the "start"button pressed, if the SK-Auto is stationary when the power is switched on nothing will happen until the user presses the "start" button. Auto Distance Control -TIMER : Press the "timer" button, your cart will proceed at the ed speed for the distance (15/30/45M) you have ed. Free Wheeling : If you run out of battery power, want to conserve the power or have break down, buggy wheels can turn EASILY and COMPLETLY FREE. Low Battery Protection : protects the battery damage as a result of being excessively discharged. The effect of this is that when the battery capacity drops 10% of the capacity left, the LED beside the "start" button will flash red and warn you to recharge the battery soon.Rust free design stainless steel axle and fittings all around.