To power on/off, take five inhales. Activate the 10-second preheat mode by inhaling twice, and cancel it with one puff. Adjust voltage settings by inhaling thrice. Designed for on-the-go use, the durable Sutra Vape Silo Auto Draw Cartridge Vaporizer comes in six stylish colors: Black, Blue, Full Color, Gunmetal, Pearl, and Silver. Hurry up to purchase this stylish cartridge vaporizer from our online headshop.