SMOK's KOOPOR Mini 60W with Temperature control. Features a magnetic door for easier acess to replace your 18650, spring loaded connector, variable wattage mode from 1-60 watts that can fire down to a 0.1Ω-2.0Ω, temp mode from 100-350 °C / 200-600 °F, multiple protections for safety assurance and battery vents on the side and bottom of the device. The battery vents draw in cold air through the side of the device and pushes out the battery heat through the bottom vents making the device known as the "box that can breathe".