Joyetech brings you a high-powered temperature-control box mod with a simple, sleek design. The Cuboid features a 0.96 inch OLED screen that displays individual battery levels as well as temperature and wattage information. The Cuboid has upgradeable firmware so that your device can keep up-to-date. For example, while the Cuboid was released as a 150 watt mod, the latest firmware upgrades allow you to push that to a whopping 200 watts! On top of that, Joyetechs new "Smart" mode is availble via firmware upgrade. The Cuboid is compatible with SS, Ti, and Ni coils, and is powered by 2 18650 batteries.