Unregulated mods are devices that have no circuitry and provides direct battery power to your atomiser, with no power adjustments or electronic safety features. They come in either a box shape, or in a cylindrical form. They are an open circuit until you press the fire button completing (closing) the circuit to give you direct battery power. These mods are for Advancedvapers, that have good knowledge about battery safety, ohms law and resistance, as these mods will fire any coil, any build, even if there is a short in it. So when choosing to go with an unregulated mod (Mech Mod) please make sure that you know all about battery safety when it comes to vaping and also ohms law and how it relates to your builds. These mods are not for beginners.