It sets hands free and makes jump so easy. No matter if you are listening to music,watching TV or free talking,you can just jump and jump. With remote in hand, setting proper paces is all in clicks. It allows 1-4 players participation. So invite friends family members(pets included) or colleagues to enjoy the jumping and have fun.Take it to any flat surface, home, office, gym, backyard or party. Operation Brief: Place the machine on a clean flat ground. Insert and screw the soft rod clockwise. Make sure that the rod is fixed tightly.