Product description Results of performance tests According to the comparison test for the temperature of the crown of a head between the safety helmet equipped with a forced air cooler and a normal safety helmet, the cooling safety helmet showed lower temperature than the normal helnet by 5.4℃. Also, because some of circulated air discharges onto the face, the temperature of the face decreased by 1.8℃. Ver 3.2 CI-106H Storm Helmet Strom Helmet works based on this principle : the air passage along with the cooling fan inside the helmet facilitates the circulation of outside air and thus causes evaporation of sweat from the heat, which then drops the temperature inside the helmet consequently. This product is protected under patent law. The unauthorized reproduction and sales of this product are subject to civil or criminal penalties pursuant to Article 225 of the Patent Act. Characteristics of Ver 3.2 Storm Helmet -The most inconvenient 2015 version external battery has changed into a built-in battery. -Cooling efficiency is increased through an improved internal structure. Warnings Please read the instruction manual and precautions before using Inappropriate use of storm helmet and its battery can cause damage to the product, overheating, explosion, or even produce harmful gases and fire, which may pose risks to its users. The manufacturer will not be responsible for such cases. * Keep this product out of direct sunlight, and store it in a cool, dry place. * Be careful not to drop or exert force on the headpiece. In any case where damage to battery occurs,such as pitting and deformation,stop product use and contact the seller or store it in a proper place. * Do not disassemble or repair this product arbitrarily. * Keep this in a dry place and avoid humid areas or areas with water.