Excellent as a first device, the Uwell Caliburn X 20W Pod Vape Kit is equipped with a 850 mah battery, adjustable airflow, and voltage coil resistance. The Caliburn Vape x Pod System represents a terrific way for experienced vapers to upgrade their vape in one easy move! The Calibun Vape X Pod System features designs to make achieving a satisfying vape easy, quick, and virtually mess-free, the Uwell Caliburn X 20W Pod Vape Kit offers profound satisfaction, premier performance, long-lasting battery life, and extraordinary on-the-go portability!