Product Features: 510 thread connection and 650 mAh Thermal chamber Protects cartridges Improves airflow Adjustable temperatures include: 2.7V - White, 3.2V – Blue, 3.6V – Green, 4.2V - Red 15 second Preheat Mode Micro USB charger included 4 color options: Panther Black, Lucky Gold, Cosmic Chrome and Rainbow Large front window on package Authentication code Limited warranty Discreet look