The UWELL CALIBURN G2 POD KIT has vibration interaction to help vapers know what the device is doing without looking. Working with a built-in 750mAh battery it can support Draw-activated & Button-activated vaping. Featuring a progressive airflow adjustment it offers a choice between MTL & restricted DTL vaping. The UWELL CALIBURN G2 POD KIT has a pod e-juice capacity of 2ml and an e-juice window to show levels and that can refill from the top conveniently. The new G2 adopts Pro-FOCS flavor adjusting technology to provide you with great taste and pure flavor.