... -liquid content of each cartridge: 0.7gEach cartridge can last for: about 250 mouthfulsEach cartridge equal to traditional cigarette: 22pcsBattery content ... working voltage: 3.3—4.2VFully charged battery can keep for:about 1000 mouthfulsCharge time: 4-5 HBattery life: more than ... cigarertte Options of Flavors:More than 45 kinds of flavors for your option, such as tobacco, mint, vanilla, lemon, coffee, ...