Perfect for those on the go the Click Portable Battery delivers a rich vape experience. With simple push button controls including a 10-second preheating system to maximize your vaping experience. Click Portable Battery incorporates a creatively designed cartridge pop up structure with a zinc alloy rotating shaft. It is suitable for all cartridges with a diameter of 11.5 mm or less with click control at your fingertips, and a selection of voltage controls (2.8V/3.4V/4.0V) to regulate your vaping. The voltage settings can be easily monitored on the LCD screen, easy and convenient to use.