From the photos, I don't see any dials on any side, other than the fire button, so to be on the safe side, lets assume that is a mechanical (no safety circuits) mod. Since you said you are a new vaper, my best recommendation is take the batteries out, and pack the box in a drawer for later. You can use the tank on a regulated box and the batteries. (keep them paired, or use them single *but not paired after that*). You will need to do some study on battery safety, and ohms law, as well as learn how to build coils, and how to build good coils.
Now the part on top is an RDA (rebuildable drip atomizer) and inside is a coil (or 2) and a wick (or 2). To use, you pop the cap off, drip juice onto the wick and into the juice well in the base, replace the cap, and vape.
Now I have heard that that is a nice box mod, just to advanced for a new user.