featuring the GENE.FAN 2.0 Chipset, 5-100W output range. Constructed from durable zinc-alloy, the chassis of the DRAG X PLUS Pro Kit is impact resistant and houses the advanced GENE.FAN 2.0 Chipset, and takes an external 21700/18650 Battery (Not included). Outfitted with a Smart Mode to automatically detect coil resistance, the The DRAG X PLUS PRO Kit is intelligent and great for newer vapers. Equipped with a RBA Mode for more advanced users, the DRAG X PLUS PRO can be paired with 510 threaded sub-ohm tanks or rebuildable atomizer options.