Red Ooze Duet - 650 mAh 510 Dual Conceal Cart Battery

Use TWO cartridges at once with the Ooze Duet! This 650 mAh battery features a digital screen with voltage control and a battery indicator, pass-through charging, and airflow control switches for each cartridge. Use the IntelliSwitch on the base to select the right, left, or both cartridges at once.