UWELL CALIBURN A2 POD KIT [CRC] is equipped with a leak-proof top filling system and has a visible window through the mod to make the e-liquid check easy. With PRO-FOCS technology, the built-in FeCrAI UN2 Meshed-H 0.9 Ω Coil can bring you an authentic flavor. The device supports both direct draw and button draw, outputs at power 15W by 520mAh built-in battery. Last but not least, the mod is made of Aluminum Alloy material which is smoothing, polishing, and comfortable grip.