Scanfrost SFRF18RCB - 18" Stand Fan, AS 5 Blade with Remote, Black Color, has 5 blades which it uses to deliver optimum cooling in spaces as large as warehouses, and in small spaces like your room. For features, the Scanfrost SFRF18RCB - 18" Stand Fan, AS 5 Blade with Remote, Black Color comes with an adjustable head, 5 blades, replaceable batteries, a standard 3-in-1 plug, rust-free blades, and energy-saving function. Scanfrost SFRF18RCB - 18" Stand Fan, AS 5 Blade with Remote, Black Color can deliver cool air between 5-6 hours when fully charged. And also switches automatically to its internal battery during a power outage.