Cool and humidify your home or office space with this Black+Decker Desktop Evaporative Air Cooler. The efficient air cooler runs for up to 8 hours on a single refill. Adjust between 3 speed settings by pressing a button for ease of use. The versatile unit can be used with any standard USB outlet on your PC or laptop device. Compact and portable design. Features Low, Medium and High fan speeds. Water tank has a 0.5-liter capacity. Runs up to 8 hours per refill. Offers a 0.06 l/h humidification output. Power using an included 39" micro-USB cable. Can be used with any standard USB outlet on your PC or laptop device. Features an easy to view water level indicator with LED lighting. Choose between 6 steady color options and a rotating color setting. Cooling pad absorbs moisture which cools the air as it evaporates. Equipped with adjustable air vents. Backed by the manufacturer's 1-year limited warranty. Sleek black design.