Choose your desired voltage level of either 3.0V, 3.7V, or 4.2V by clicking the button three times. Activate preheat mode by clicking the button twice; the device will heat continuously for 15 seconds without holding the button. The Ooze Novex vaporizer battery is a sleek and stylish device that puts the power right in the palm of your hand. This battery is small, a cross between a stick-style battery and a mod-style device. Its small stature makes it discreet, yet the 600 mAh makes it powerful with a long battery life. Choose your desired voltage level of either 3.0V, 3.7V, or 4.2V by clicking the button three times. Activate preheat mode by clicking the button twice; the device will heat continuously for 15 seconds without holding the button. The Novex is compatible with pre-filled oil, extract, essential oil, and delta 8 cartridges, as well as concentrate atomizers that can fit into the chamber. The Novex provides more protection for your cartridges than typical batteries because it is tucked inside the chamber and not as exposed. Each Novex includes a magnetic USB charger with overcharge protection. The charger automatically shuts off as soon as the battery reaches a full charge, greatly extending the overall life of the battery. The Novex has a port for a micro USB charger, which is sold separately.