... that your company is so large,and car industy,at this moment,is in so favorable situation,why do you still ... countries,like Russia,also concern with mobile phone radiation,By this token,forbidding students,using mobile phone has become a trend ... .FC Changjiang radiation-proof earphones are the best solution to this problem.TYPICAL STRUCTURE OF RADIATION-PROOF EARPHONESEar plugs of FC Changjinag ...