The E8 Pod System uses a 3.7V output to ensure a fine throat hit. Paired with battery 350mAh that can be charged anywhere with the USB cable and port The E8 has a 1.5 Ohm (red silicone stopper) and a 1.8 Ohm (black silicone stopper) the silicone stopper on the two pods are in the middle of the pods. Each one of the pods’ mouthpiece consists of an arching design that enables a more natural use. The E8 Pod System is a cute, small and simple. This design is a win my books! It is a great system for the on-the-go lifestyle, with its unbelievable features and versatility!