The world's three major electromagnetic radiation research institutions have confirmed that air duct headphones are particularly good for preventing mobile phone radiation. So you can use anti-radiation headphones to prevent cell phone radiation. However, the products of radiation-proof headphones on the market are mixed. Kangdao anti-radiation earphone is not only an air duct earphone, but also created five advanced patented technologies, such as metal shielding isolation wire and non-magnetic sound cavity, which is the first to put forward the concept of safety and health in the earphone field, and can also prevent radiation without affecting sound quality.