The 5th Pocket is a new entry into the cartridge vaporizer market. The 5th Pocket has a unique design that uses dual 200mAh batteries for maximum power output. The unit gets its name because it is designed to be small enough to fit in the 5th jean pocket. The 5th Pocket uses a super convenient 510 thread magnetic connector. This allows you to easily screw it onto your cartridge, drop it in the unit, and you're good to go. The single button operation make the 5th Pocket easy to use. Lock or unlock the button by clicking it 5 times quickly. A quick 2 clicks of the button starts the preheat function while 3 quick clicks will change the voltage level.