Airistech Airis Janus is a lightweight and inconspicuous 2-in-1 oil vaporizer. It comes with 650mAh built-in battery and can be charged with any Micro USB cable. It is compatible with both Salt Nic pods and 510 thread oil cartridges. There are three different variable voltage options for your choice. The rapid preheating can heat your oil to bring you a nice and pure taste. Small and exquisite which easy to carry. Available in 9 colors.