The SMOK Alien is a powerful 220W box mod with an advanced electronics and a slick, innovative design. Powered by two 18650 batteries (sold separately), the Alien mod allows you to track the charge of each battery individually on the OLED screen. The ergonomic design with the large fire button making using it comfortable and convenient. It features intelligent temperature control and variable wattage firing modes, making it a perfect match for the serious vaper.