WTF box mod is very compact, for easy portability and discreteness. It is a slim, ergonomic device with a built-in 2200mAh battery (with a max power output of 40W). It features a solid, all-metal exterior, with rounded edges for improved grip.
A built-in OLED display allows users to customize their settings. The mod has a three-button configuration and a micro USB port for charging. The starter kit includes the Target Mini mod and the WTF sub-ohm tank.