... control system function according to your request, now we have functions: infrared sensor, ups, rebound automatic when meet obstacle, alarm ... BOX,BRACKET SYSTEMAC MOTOR CONTROL SYSTEM20 PICS ONE CARTONAC MOTOR OPTIONALREMOTE CONTROL SYSTEM FOR DIFFERENT FUNCTIONAC MOTOR ... INCLUDEMOTOR,CONTROL SYSTEM,BACKUP BATTERY, BRACKET SYSTEMAC&DC MOTOR OPTIONALPUSH BUTTON,LOCK BOX, INFRARED SENSOR, ALARM SYSTEM.AC ...