This kit speaks for itself. Tap the single button five times to power on and off, three times to switch through temperatures, and twice to preheat the coil. The simplistic design ensures an easy and ready-to-use format that is perfect for any vaping savant. Whats in the Box: 1 x Adjustable Airflow Battery 1 x USB Charger Features: 510 Threaded 350mAh Adjustable Voltage Single-Button Interface Works with E-juice and Oils USB Compatible