Technomad Military PA Systems are completely weatherproof. They are IP56 compliant. They are impervious to rain, snow, sleet, salt fog, UV radiation, insect attack, rough handling, and more. [See “torture testing” videos ] They are Mil-Spec 810F compliant, and are constructed from thick, one-piece polyethylene. No other commercial or military loudspeaker comes close to the physical and electrical reliability of Technomad.