The Uwell Caliburn Koko kit is the pocket-friendly upgrade of the renowned Caliburn pod kit. Featuring a 520mAh built-in battery, the Koko combines a discreet setup with an efficient performance intended for users of all experiences. This kit is compatible with the original 2ml 1.4 Ohm Caliburn pods as well as the newer 1.2 Ohm cartridges.