Upgraded button with battery charge indicator: White light ~ 60%-100%, Blue light ~ 30%-60%, Orange light ~ 0-30% New Upgraded and stable PCB control Board More comfortable and ergonomic spin dial for adjusting the voltage Brand New and upgraded Battery Cell (which makes the Spinner II even more Powerful) Longer Lasting Life span due to the New upgraded PCB circuitry And Battery Cell Cutoff Time: Approximately 8 seconds This is the highest capacity variable voltage eGo available today! Vape at your desired voltage! Higher voltage = More vapor! The Vision Spinner is compact making it the most portable variable voltage device available. Don't forget the high capacity battery cell... Vape for hours on a single charge!* The Spinner has a dial located at the base of the battery. The Spinner has four markings to indicate approximate output voltages at 3.3, 3.8, 4.3, and 4.8 volts but is adjustable throughout the entire voltage range. Simply turn the dial to your desired vaping voltage. It features an easy to read numbered dial.