A simple variable voltage vaporizer with eGo and 510 threading. The voltage settings are easy to change by simply clicking the button 3 times. This battery includes a skirt adapter so it can be used with an eGo threaded tank or any 510 cartridge and still look great. This battery can be charged via Micro-USB port with the included Micro-USB cable.Battery Capacity: 900 mAhThreading: EGO, 510Includes Micro-USB Cable: YesIncludes Skirt Adapter: YesPower Method: 5 button click on/offVariable Voltage: 3 button click Variable Voltage