RN4072 E-cigarette Group Speciation: 1) 155.5(L)*11.5(D)mm(with inhaler sheath) 2) Weight: 24g(with battery) 3) Power source: DC3.6V(Lithium battery) 4) Different color available. 5)Harmless to others and the environment, without the danger of “second-hand smoking” 6)Made from microelectronic control and supercritical atomizing technologies 7)The cartridges are available in the following tastes:normal(tobacco extract),mint and kinds of fruit flavor. 8)Warranty: one year 9)Customized logos are available to be roll printed on pole of cigarette E-cigarettes generally use a rechargeable battery as a power source. Battery life varies between devices, with some lasting a day between charges, adn others lasting a week.