El Thunder 20700 is made for ergonomic form factor with four notches and fits perfectly in any hand.

Viva La Cloud re-worked the contact system for unbridled performance. This design both reduces the resistance and allows the button to be pressed evenly over its entire area. Compared to the classic version of El Thunder, the contact area is increased by over 10.5%.

The button has a permanent contact system to protect the battery from spotting. In the kit two silver plated spacers - 1 for standard atomizers, and 1 for drippers with protruding pins. It also includes an adapter with a spacer for 18650 batteries.