Since the the first tobacco style ecig, it has been some years after many new style created: the vv battery/ the mechnical mod/ the vv vw box mod, especially some mods includes TC function, bluetooth function. While we heart many said that it's just a battery: 10w/20w/30w/50w/100w....even higher........it should convenien all's vapor needs, so what's the next generation of box mods will be? Any of yours idea or imagination on it?