The YiHi SXmini X Class 200W Box Mod is a dual high-amp battery vaping system, incorporating a myriad of output variations, exquisite visual detailing, and features the advanced YiHi SXmini X Class Reservoir with innovative ESS Technology. Constructed from a beautifully decorated zinc-stainless steel alloy with carbon fiber accents, the X Class Box Mod carries an aura of luxury. Powered by a pair of 18650 batteries, sold separately, the SXmini X Class features a separated eJuice reservoir found at the base of the device that keeps eJuice fresh and away from the heating element and the associated residual heat that can affect the true flavor of juice within the reservoir. An intelligent monitoring system checks the juice level in both the atomizer and squonker, adding or cutting off the juice supply when necessary. This automatic squonking is highly innovative, moving juice from the resevoir to the atomizer, and can be expected to show up in other high-end mods in the near future.