This thing does it all, it has the pod system, rta, 510, temp control, you name it. (Sold separately) The .4 coils have the flavor and the .2s chuck the clouds. 21700 batteries has your nicotine fix at its knees, being able to use it all day. I do recommend name brand batteries like Molicel p42, Samsung 30T/40T, Sony vtc, hohm life.