SmartPuff is the most-advanced disposable vape available. The digital display shows the current battery level so you'll never be caught off guard with a dead battery. The preheat function allows you to gently warm the oil to release its full flavor and ensure a vapor-rich hit from the first inhale. Plus, you can set the output to high for a more intense draw or low for a flavor-rich hit that prolongs the battery life. Available in six amazing flavors! -Battery Display -Preheat Function -High/Low Output -Activation time: Immediate