Feature●Built-in button, experience the perfect pressure feeling.●Regardless of left and right, install and use, do not lock screen and then unlock.●Super compatibility, universal mobile phone, iOS system and Android.●The installation position can be adjusted by yourself without blocking the map view.●1 Pair Mobile Phone Game Aid Button Mobile Game Controller Joysticks Target Fire Trigger Buttons for Shooting Game Practical Design and DurableDescription Sensitive metal key, you can aim and shoot at the same time! Increase your score. The installation position can be adjusted by yourself without blocking the map view. Regardless of left and right, install and use, do not lock screen and then unlock. Super compatibility, universal mobile phone, iOS system and Android. Built-in button, experience the perfect pressure feeling.