Utilizes Uwell's proprietary Pro-FOCS flavor technology to maximize the effectiveness flavors. Constructed from sturdy but lightweight aluminium alloy, within the CALIBURN is a removeable 520mAh rechargeable battery designed to allow for charging outside of the device to ensure no downtime for the CALIBURN when needed. In addition, the CALIBURN features a dual method firing mechanism, using either the draw-activated firing mechanism or the intuitive firing button. Should the draw-activated firing mechanism fail, the intuitive button should still continue to function when needed. Furthermore, the CALIBURN Pod System possesses and uses the Pro-FOCS flavor technology, recycling drawn airflow through the atomizer core to load the airflow with condensed flavor. A top fill 2mL pod is used to contain today's favorite juice, firing at resistances of 1.4ohms.