By HyTechToyz, this system installs in minutes and allows dramatic TRUE EVAPORATIVE COOLING. Powerful 6,000+ CIM Output dramatically reduces lens fog. Patent Pending Hair Guard Technology helps keep hair and debris from being drawn into the blower. This HIGH OUTPUT unit can be completely mounted inside the helmet. Runs EXTREMELY QUIET while GENERATING A HIGH VOLUME OF AIR MOVEMENT. Operates on a standard 9 volt battery (Not Included). Comes complete with Instructions, and Mounting kit. Check out our videos on YouTube, or visit the HyTechToyz website for more details. Ages 10+ Designed for welder, adult reinactors, 501st cosplay, and anyone who needs to keep a cool head. Makes for a great upgrade to your armor.