A simple variable voltage vaporizer with 510 threading that comes in beautiful retail ready packaging. The voltage settings are easy to change by simply clicking the button 3 times. The slim design of this battery tapers off to help make any 510 cartridge sitting on top of it look great. The package includes a smart protect USB-C charger. Battery Capacity: 900mAh Threading: 510 Includes USB-C Charger: Yes Power Method: 5 button click on/off Variable Voltage: 3 button click Variable Voltage