is powered by dual 18650 batteries with a 200W maximum output power. It features innovative SS904 TC mode that fits with the SS904 coil of the CROWN Ⅳ Tank. The PCBA is equipped with conformal coating to protect the core unit and prolong the life of mod. The Crown IV adopts anti-leaking design on the 510 connector, no leakage. It comes with anti-slip and anti-wear silicone bottom which can protect your mod from sliding off smooth surfaces. With the protruding CROWN fire button, you will enjoy a much better hand feeling. Two step anodization process on both sides, it is more durable. Besides, the box mod provides multiple work modes and several safety features.