So I rarely leave reviews but I think it's important for people to know before you shop here, these people only want your money. It seems to me they aren't experienced with vapes or how they work. They sold my husband a mod that uses COTTON. what is it 2015? Any vape shop would make sure the customer knows what they are buying. When I called to see if I could just exchange what they sold us they said no. So that's $100 down the drain. And this POS box is sold online for $70. Do better "smoke buddy's"