Dual Cartridge Design: Use two 510 carts simultaneously or toggle between them. 750mAh Battery: Long-lasting and dependable internal power. Variable Voltage: 1.8 volts (V) to 4.2 V for custom vapor output. Independent Firing Buttons: Control each cartridge separately or fire both at once. OLED Display: Real-time battery life and cartridge activity indicators. Magnetic Adapters: Quick-swap magnetic connection for 510-thread carts. USB-C Charging: Fast and modern recharging capability.