Knight 40 is powered by a built-in 1500mAh battery with 40W output and Type-C charging. With the 0.42 inch OLED screen, it can clearly show you the necessary vaping information. Featuring top air-inlet system and top airflow control system, Knight 40 can also minimize leakage and condensation. Knight 40 Kit adopts dual PCB chip structure to become more efficient and more energy saving. Knight 40 is compatible with Smoant S (Santi) Coil to bring you MTL/RDL/DL vaping experience. Brand: Smoant Unit: 1 Set Material: Zinc Alloy+PCTG Battery: Built-in 1500mAh battery Charging: Type-C charging Output Power: 1-40W Output Voltage: 3.2V-4.2V Airflow: Top airflow Capacity: 3.5ml Fit For: Smoant Knight 40 Pod Cartridge, Smoant S (Santi) Coil Package: Gift Box Each set contain: 1pc Smoant Knight 40 Device 1pc Smoant Knight 40 Cartridge (0.35ohm coil preinstalled) 1pc S-6 Mesh 1.1ohm Coil 1pc Type-C USB Cable 1pc Warranty Card 1pc Certificated Card 1pc User Manual