CALIBURN GK2 is an upgraded version of the KOKO PRIME series. Featuring adjustable airflow, top-filling and transparent window design, it provides a better interaction experience and fits a wide range of vapers, being compatible with 3 Caliburn coils (0.8ohm/ 1.0ohm / 1.2ohm). Dazzling light and cyberpunk design lead to an infinite imagination of the future. With the internal 690mAh battery and the UWELL Pro-Focs flavor adjustment technology,  CALIBURN GK2 will give you the best vaping experience, while making you stand out in the crowd.