The DL88 Mobile Phone Gamepad Trigger is a uniquely designed game controller/trigger and a cooling pad in one. The back is lined with an aluminum sheet backed with stainless steel that absorbs the heat away from your phone and is then dispersed outside with the strong fan attached at the back. The triggers are made of stainless steel that is situated in a natural position so that you do not strain your hand using them. In addition to that are the ergonomic handles giving you a better grip that is very comfortable to use even in long marathon sessions. The triggers also boast of a dual-contact design depending on your preference of finger placement, and the contact points are also able to be flipped up and down so you can remove them from your screen when not in use.