I am looking for a discreet portable vaporizer that can store a lot of dry herb so I don't have to reload so often. I also want it to be able to vape wax and stuff too. I would like the temp to somehow be controlled as well. I had a dube pen vape and if you sucked to hard it just burned your stuff. It was hard to hit it light enough, I always burned it. So if this could stop the herb from burning so easy it would be great Does this exist?