Set up your phone to be an efficient gaming mobile phone. The Mobile Game Triggers and Cooling Fan gives you a way to level up your gaming with the sensitive trigger controls and at the same time protecting your phone from overheating with the separate cooling fan. This makes your phone built for a gaming marathon. And as an additional feature, they can be clipped on together when not in use to a package that is just perfect to fit inside your pocket. You can use them all together or separately, a truly versatile combo.