Electronic cigarette, also known as an e-cigarette, is a battery-powered device that provides inhaled doses of nicotine by way of a vaporized solution. It is an alternative to smoked tobacco products, such as cigarettes, cigars, or pipes. In addition to purported nicotine delivery, this vapour also provides a flavor and physical sensation similar to that of inhaled tobacco smoke, while no smoke or combustion is actually involved in its operation. The electronic cigarette is designed to resemble the outward appearance of real smoking cigarettes, cigars, and pipes. All electronic cigarettes employ the same basic components: a mouthpiece, a heating element, a rechargeable battery, and various electronic circuits.