✔【4 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 controllers. ✔【 HOW TO USE】: Start the game and click Settings - Control - Customize. Move the AIM to the upper left corner. Move the Fire button to the top right corner. [You can adjust these according to your own habits. ] Adjust the shooting and target buttons under the touchpad of the mobile game controller . Save your settings. ✔Allows for more screen visibility and also makes the play area larger. ✔Frosted surface, prevent sudden slipping, avoid sweat on screen, and give you an excellent touch. And its also prevent scrathes on phone screen.