The Ooze Slim Twist Battery Pen is a sleek and compact device that is perfect for vaping on-the-go. This pen has a variable voltage feature that allows you to adjust the heat level to your preferences. The 320mAh battery provides long-lasting power and can be charged easily with a USB cable. The pen also comes with a 510 thread, making it compatible with most cartridges. With its discreet design and powerful performance, the Ooze Slim Twist Battery Pen is a must-have for any vape enthusiast.