The FOXY ONE MOD presents a stunningly designed zinc alloy structure with strong magnetic battery doors integrated with a 120W chipset optimized for variable wattage and variable voltage outputs.The mod utilizes a single 18650/20700/21700 battery. Please use the battery adapter that comes with the mod if you want to use a different battery.It supports variable wattage/voltage and BP modes, the box mod can fire at up to 5-120W.