Mobile Game Controller + Finger Sleeves: Our product includes a mobile game controller and a pair of mobile game finger sleeve. All of them are designed for mobile game. The mobile game finger sleeve let your finger touch the screen more sensitive and smooth.Silent Cooling Fan: Equipped with cooling fan, it can avoid phone overheat when playing games, protects the phone's battery by keeping the phone cool.Four Fingers Operation: Aim and fire while moving- Just use your index fingers to press the L1 R1 triggers, that shooting, aiming, moving, jumping, squatting, and lying operations can be performed at the same time, which can eliminate the trouble that use thumbs only. It is a massive advantage in close range combat because difference in milliseconds can be life or death. Moreover, no disconnection, response delay, root request or system incompatibility issues compared with Bluetooth controllersWide Compatible: Suitable for 4.7-7.0 inches touchscreen，such as iphone 11 /11 pro /11 pro max / X / XR / XS / XS Max / 8 / 8 plus / 7 / 7 plus, Samsung galaxy note 10+ / note 10 / note 9 / S10 / S10+ / S10e / S9 / S9+ / S8 / S8+ and more. You can use the mobile to play mobile game, such as PUBG Mobile, Fortnite, Call of Duty, Rules of Survival, Survivor Royale, Critical Ops and more.100% Warranty: Full re-fund and replacement for the 1 month. If you have any issue, please feel free to contact us via buyer-seller messages a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a