Demon Killer JBOX Mod comes with a compact size and stylish demon pattern. The panels adopt the mirror finish, you will feel very smooth and comfortable when holding it in hand. Powered by a 420mAh built-in battery, it perfectly meets your daily vaping need. Because of the light weight and mini size, you can easily hang it on the neck or put into the pocket. Tiny size and exquisite appearance Short-circuit protection Built-in 420mAh Li-ion Battery Protection for vaping over 10 seconds Battery in voltage: like the figure shown Four LED lights remind you voltage Perfectly fit for Juul Cartridge (not included) Brand: Demon Killer Model JBOX Fit for Juul Cartridge Size 61.5 x 42 13.5mm