This mobile gaming controller will definitely enhance your gaming experience. Excellent compatibility - This set of mobile gaming controllers is designed for 4.5-6.5 inch Android phones. The mobile gaming joystick controller is activated physically; it has no effect on the screen. It's easy to set up and use. Versatile - This mobile gaming controller works for various games, especially PUBG, Knives Out, Rules of Survival, Survivor Royole, Critical Ops. Portable design - This mobile gaming trigger controller comes with a plastic case. Lightweight and compact for you to carry around and play anywhere anytime. Top features for mobile gaming controllers: Usage instructions - Before playing the game, adjust your Fire and Aim buttons under the touchpad on the Knives Out gaming controller. With PUBG Mobile Controller, you can move, rotate, aim, and press buttons with your finger, eliminating the hassle of using only your thumbs for all operations. Once installation is complete, lock the screen, restart the game, and then these buttons will work normally. Depending on different phone models, there may be slight position differences as shown in the image; adjust your button in a comfortable way. How to use mobile gaming triggers? 1. Start your game and click Settings - Control - Customize; 2. Move "FIRE" button to the top of the left corner; 3. Move "AIM" button to the top of the right corner; 4. Adjust aim and trigger buttons under the touchpad on the mobile gaming controller; 5. "Save" your settings. Color: black + red Material: plastic Size: 5*3*2cm Packaging content: 1 pair * mobile gaming controller (L1, R1), with plastic case Only the above packaging content included; other products are not included. Note: Lighting and different screens may cause slight color differences between the item in the image and the actual product. The allowed measurement error is +/- 1-3 cm.