QASA 18 inch standing rechargeable fan is an innovative product that creates airflow in your homes and offices. It is an essential appliance for every home and offices as it consists of 18 inch oscillating 5 speed fan blades that rotates to give you cool relief during hot season. It features built in power cord with plug rechargeable battery that operates with electricity while charging itself at the same time. The knob button gives you the authority to be in control of the speed level and the rechargeable sealed lead acid battery last long for you to feel relaxed with fresh air all day long.