Smart Screen display can tell you battery level and puff time. Adjustable airflow is more suitable for people with different needs for suction resistance. Dual mode adjustable wattage output offers up to 30K puffs and boost mode up to 18K puffs. 1.0ohm Dual Mesh Coils with constant voltage output ensures that coil's longevity and delivers the optimal burst of fresh and authentic flavor during the whole vape experience.