What are the functions of the two buttons on the side of Medtronic brain pacemaker charger? When will it be activated? How to use it?

At present, there are many kinds of charging treasures on the market, all of which are pleasing to the eye. However, they have one similarity. Most charging treasures will be equipped with a power button on the shell, but this button can realize the functions of power switch, power display and flashlight on some charging treasures respectively. Moreover, in order to make the daily operation of consumers easier, some charging treasure manufacturers have also adopted the design of automatic detection circuits, thus making daily use more convenient.