It features two mini electric fans to cool phone down for better gaming experience.
Built with adjustable clamp, it can firmly hold 4.7 to 6 inch phone in place.
Equipped with rechargeable battery, it can act as power bank to supply power for other devices.
With triggers, it helps you to act quickly to have more chances to win in some kinds of games
Note: There are three versions of controllers available; One has 5000mAh battery, one has 2500mAh battery and the other has no battery inside, which relys on connecting with power supply to run the two fans.