... : The trolley would stop if press Pause key, and the working light is off, the speed level on ... EDC light is on, and set the distance between 1-30m5, EDC: Press Shift button until EDC light is on ... , the trolley would go the distance you set, and wait you there. The main display would shows the ... battery situation.7, Odometer: Press the zero clearing button for 5 seconds, the odometer would start with 0 ...