The Uwell Caliburn GK2 is a vape device manufactured by Uwell. It is the successor to the popular Caliburn G model and features a similar design but with some improvements and new features. The Caliburn GK2 is a pod system that is designed for both MTL (mouth to lung) and DTL (direct to lung) vaping. It has a built-in 690mAh battery that can be charged using the included USB-C cable. The device also features a Type-C fast charging system, which means that it can be charged quickly and efficiently.