【4-IN-1 MOBILE GAME CONTROLLER】: The gaming controller combines wih Gamepad, Gaming Trigger , Phone Cooling Fan and Emergency Charging Bank as one. More than 200,000 tests and improvements have resulted in multiple functional integrations 【POWER BANK】: Built-in 2000 mAh capacity battery, the mobile controller can charge the phone while cooling the phone. Don't worry about running out of battery when you enjoy the game 【COOLING】: It has a powerful heat-dissipating function, which can prevent the phone from overheating for a long time by opening the cooling fan and prolong the service life of the phone and battery