To charge your VM33, you will need a USB-A/C wall charger (not included in the box) and the included USB-A to USB-A/C cable.
Simply, plug the USB-C end of the USB cable into the back of VM33 and plug the USB-A or USB-C end into your adapter. Plug the adapter into any standard wall outlet. It will begin charging automatically.
The LED indicators on the rear of the camera (above the audio jack) will blink white to indicate that it is charging.