The Uwell Marsu Pod Kit consists of a 150mAh rechargeable Pod System Device and a 1000mAh Rechargeable Case. You can use the pod device on its own, or combine the two to create a kit with longer battery life - that's still small in size. View the e-liquid capacity in the cartridge through the juice window. And refilled with a side filling system. Generate delicious steam from your favourite e-juice with the integrated 1.2ohm resistance coil.