Size: 107.5 mm Diameter: 8.5 mm Weight: 14.2 g Each cartridge can be sucked in 120-150 mouthful 1pcs cartridge equal to 10 pcs cigarettes Each cartomizer can be sucked in 320-350 mouthful 1pcs cartomizer equal to 25 pcs cigrettes Battery capacity: 200 mAh Working Voltage: 3.3~4.2 V Charge Time: 2-3 hours Life-span for battery: rechargable 380 times Color and pattern can be customized