The "Tetra" Dry Herb Vaporizer Kit comes with everything needed to successfully vaporize your dry herbs. The "Tetra" Dry Herb Vaporizer itself has many settings and functions to help give you the best possible vape session. The temperature range is from 200°F to 428°F. This is easily adjusted by the two arrows located under the power button. Under the buttons is a small digital screen which displays the actual degree your "Tetra" Dry Herb Vaporizer is set to. For thicker vapor, try raising the temperature. For a more smooth toke, lower the temperature. A battery symbol at the bottom right of the screen shows how much power you have left so you will not ever get caught off-guard when your portable vaporizer suddenly turns off. The included USB charging cable fits into any USB port, making on the go charging a breeze. A slow and steady inhale will produce the best results. The kit also comes with a cleaning brush, extra screens, and mouthpiece covers. It is hard to find a vaporizer kit like the "Tetra" Dry Herb Vaporizer Kit that includes such assets and does not break the bank.