Grateful Dead 510 DL 3.0 Twist Variable Voltage Vape Pen | 650mAhGrateful Dead x Pulsar 650mAh battery 510 threaded connection Variable voltage (2. 8 4. 0V) Twist dial on base for voltage adjustment Sleek and discreet Auto draw activation Button free pre heat Concealed cartridge port Universal 510 threading (fits carts up to 2mL) USB C charging Replacement base connectors available Available individually and as a 10 count assorted display 6 month end user warranty *Cartridge sold separately* Multiple Grateful Dead