... ,huge smog CE,RoSH , no oil-leak , huge smoke Slb electronic cigarette tgoImproved ego-t---tgoNo- oil leak ,huge smog CE,RoSH ... energe Working voltage: 3.3-4.2V , the heating coil electronic resistance is 2.0-2.3 Ω Standard package 1 * Gift ... , no ash , no need ashtrayNo fire hazard , environmental pollutionNo passive smoking , no hamful to body