Variable Voltage Battery Kit

This variable voltage battery works with all 510 threaded cartridges. Easily adjust three different temperature settings to personalize your flavor experience. Rechargeable with USB Adapter. Press the button 5 times in quick succession to turn the battery on/off. Press and hold the button down while inhaling on the cartridge mouthpiece. Release the button to deactivate and stop inhaling. Adjust the temperature in three different ways to optimize your flavor experience: 2.9V = Blue LED 3.1V = Green LED 3.3V = Red LED