Vapmod Vmod 2-in-1 Vaporizer Kit with Xtank Wax Tank is a stylish and portable vape device. It is powered by built-in 900mAh preheating battery. When fully charged, you can get more than 600 puffs. It is compatible with most of cartridges within 11.3mm in the market. Also feature ST smart chip inside provide 5 safety protections.