The Strio Battery 1100mAH Variable Voltage is the perfect addition to your vaping collection. With its sleek and stylish design, it's sure to turn heads. The variable voltage feature allows you to adjust the voltage from 3.3V to 4.8V with a simple twist of the bottom. Additionally, the preheat function ensures that you get the perfect hit every time. This package includes the Bottom Twist battery, so you can start enjoying your new device right away.