The sounds of doom have just got better with Doom Box Pro version! This app allows the user to listen to sounds of doom such as air raid sirens, tornado sirens, warning sirens, and more from the convenience of their mobile device! This app is an attention grabber and will get anyone's attention in a quite room. Doom Box Pro version includes 12 new more terrifying sounds such as super charged end of the world type siren. The creepy sounds will put a chill down anyone's spine! Some sounds included are an Ultimate Blast, Screaming Civil Defense, and a Creepy Nightmare Siren. This app is for entertainment purposes only.