For those that seek an auto draw-activated vaping experience and prefer the pen/stick style battery over others this is the pen for you. A slim 510 thread matte black with a crisp yellow HoneyStick insignia on the battery this unit is ready for your favourite 510 thread carts. With a 400mAh of capacity and 4 voltage power settings as well as a locking features and preheat gives this simple battery the features and performance of a robust vape battery. This Battery is controlled by using the Stylus tip by pushing on it which doubles as a useful tool for smartphones, planners, and several touch screen devices. This kit comes with a USB charger and is the best stick alternative to auto draw / buttonless batteries. HoneyStick 510 Battery Features: Use: Concentrates Auto-Draw / buttonless battery functionality Variable Voltage Output: 3.5V (Blue), 3.7V (Green), 3.9V (Yellow) and 4.1V (Red) Preheat functionality Stylus Touch Tip 510 Thread Battery Locking safety feature 400mAh Battery Capacity Screw-In USB Charger Low power indication alert (10 Blinks) What's in the Box: 1x - 510 Buttonless Vape Battery by HoneyStick 1x - USB Charger