The WULF MOD UNI S 400mAh BATTERY MOD is a compact and powerful device designed for vaping enthusiasts. With a 400mAh battery, this mod provides long-lasting power for extended vaping sessions. Its sleek and stylish design makes it a popular choice among users. Keywords: WULF MOD, UNI S, 400mAh, BATTERY MOD, vaping, compact, powerful, long-lasting, sleek, stylish.