They are a couple of tiny slots at the bottom of your casing that have to be open instead of blocked, to allow air to enter the system when inhaling. Most disposable vapes function "attract activation", that means there won't be any buttons or switches to the unit. Fryd’s social https://where-to-buy-fryd-product35544.idblogmaker.com/29791988/little-known-facts-about-fryd-disposable-2-gram