The Krypton chargeable fan structure is unique and fashionable. The brushless motor ensures high winds and long-life. Reliable Performance, which is fully functional and operational. Home And Office Other Use Scene, Muggy Air Again. The power supply can be a standard 220-240AC supply. The international standard lithium batteries can be recycled. Built from high-quality material. Built from high-quality material. Easy to recharge fan that is fit for outdoor use.