... leak ,huge smog CE,RoSH , no oil-leak , huge smoke Slb electronic cigarette tgoImproved ego-t---tgoNo- oil leak ,huge smog ... coil electronic resistance is 2.0-2.3 Ω Standard package 1 * Gift box 2 * Atomizer 2 * Battery ( 900 mah, balck, white ... , chrome 3 colours ) 5 * Cartridge ( 2 high ,1 middle ,1 low ,1 none nicotine ) 1 * USB charger 1 * Wall Charger Advantage : No oil-leak , huge ...