This Game controller is High quality Product with Attached L1 R1 Trigggers with it . It has a Space for Earphones and Usb cable . Its Triggers are very Sensitive with High Quality.The mobile game controller is personally tested - simulating a game controller experience, convenient control by 4 fingers and accurate operation with the mobile game controller. For best performance, updating your game device may be required. Simple Installation No battery or bluetooth needed. Just properly map game buttons as you desire. For successful setup of our mobile game controller, please watch included tutorial video. Friendly Use Our mobile game controller offers flexible installation position - not mess with phone buttons and takes negligible screen sight. It's adjustable by spiral knob - easy to clip steady, easy to adjust (thickness under 10mm). The mobile game controller works perfectly for mobile games on iphone Android like PUBG, Knives Out, Rules of Survival, Survivor Royal, Critical Ops etc. Precision Control By using Metal Button Style Trigger with premium sensitive capacitive sensor to connect your mobile phone, simulating mouse click with high precision.