Features of Innokin iTaste Leo Pro Starter Kit:Built-in 1000 mAh polymer Li-Ion rechargeable batteryLEO Pro contains a built-in 1000 mAh polymer Li-Ion rechargeable battery to supply the daily needs of even heavy smokers.Ergonomic manual button designLEO Pro’s ergonomic manual button design is a combination of European and American concepts, much more comfortable to click.ON/OFF battery switchLEO Pro is designed with an ON/OFF battery switch. Quickly clicking it three times will enable or disable the battery. Once enabled, holding down the button will active the LEOPro battery.LED battery capacity displayLEO Pro battery utilizes advanced capacity display via green, yellow and red LED lights. Users will know the battery capacity via the color of the LED Button. The lights show fully charged (green) to needing charged (red) respectively.Pass throughLEO Pro continues to use of the mini-USB Port. You can recharge the LEO Pro with a standard mini USB plug...