The control panel

You use the red button to switch on the trolley. Hold this button for 3 seconds and the light will turn green.
The red button is also the Stop & Go. While driving the trolley you can stop it by pressing the red button with one click. If you press again, with one click on the red button, the trolley will continue to drive at the last set speed.
The green button makes the trolley run forward. One click is 10 meters ahead and the trolley will stop automatically. 2 clicks is 20 meters. If you accidentally press this button, just press the red button and the trolley stops immediately.
These buttons are connected to the circuit board underneath. Should a button stop responding, there is a malfunction in the circuit board or in the push mechanism. Mail the problem to then there will be an email which action will be taken to solve it.