Aspire NX75 box mod features refined lines and high-level design accents throughout the design. The five button system is ultra-intuitive with one-button navigation between Temperature Control and Wattage mode. The NX75 series mods feature an all-new Customizable Firing Button Profiles (CFBP) function. This customization can be made with just a few button clicks. The NX75-Z also features Child Lock.