This mobile gaming controller will definitely improve your gaming experience. Great compatibility - This mobile gaming controller set is designed for 4.5-6.5 inch and Android phones. The mobile gaming joystick controller is physically triggered and has no effect on the screen. It is easy to install and use. Versatility - This mobile gaming controller is suitable for various games, especially for PUBG, Knives Out, Rules of Survival, Survivor Royole, Critical Ops. Portable design - This mobile gaming trigger controller comes with a plastic box. Lightweight and small for you to carry around and play games anywhere and anytime. Top features for mobile gaming controller Instructions for use: Before playing the game, customize your Fire and Aim buttons under the touchpad of the Knives Out game controller. With the PUBG Mobile Controller, you can simultaneously move, turn, aim and by using your index finger to press the buttons, which can eliminate the hassle of only using your thumbs to do all operations. Once the installation is complete, you need to lock the screen, restart the game and then these buttons will work normally. Depending on different mobile phone models, there may be position deviations shown in the picture, please adjust your button conveniently. HOW TO USE THE MOBILE GAME TRIGGERS? 1. Start your game and click Settings-Control-Customize; 2. Move the \"FIRE\" button to the top of the left corner; 3. Move the \"AIM\" button to the top of the right corner; 4. Adjust the aim and shoot buttons under the touchpad of the mobile phone game controller; 5. \"Save\" your settings. Color: black + red material: plastic size: 5*3*2cm Package contents: 1 pair * mobile game controller (L1, R1), with plastic box Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.