Eko Cigs' e-cigarettes are designed to emulate the feel of conventional cigarettes, but without the ash, tar, or smell of regular cigarettes. E-cigarettes come fully assembled, with the battery, atomizer, and cartridge joined in one sturdy piece. Though it appears to be a simple cigarette on the outside, the inside holds an advanced smart chip that signals the lithium-ion battery to release its charge to the atomizer, in turn vaporizing the cartridge's nicotine solution each time a user inhales.