Otocaddy m1 pro dhc electric golf trolley has all the features of the popular m1 with an electronic parking brake and a downhill braking system or abbreviated to dhc the reason why motocaddy have designed a dhc system is that most of the courses have hilly terrains there are two problems occur the first is walking down a steep slope means you put extra stress on yourself and have to pull back on the handle to control it the second is when arriving at your ball on a slope and not being able