Power technology covers the entire room so your family can sleep through the night undisturbed from mosquitoes. Kills Dengue Mosquitoes. High and low settings for adjustable coverage. Unique thermal cut off designed to shut off if it over heats. Rotating deck enables use in vertical and horizontal outlets.Keep out of reach of children. Doors and windows should be kept open while using. Use the button on side to change the amount of repellent release. Use the slider on front for adjustable coverage.