Just use your index and middle fingers to press the L1 R1 L2 R2 triggers, that shooting, aiming, left/ right tilted head, moving, jumping, squatting and lying operations can be performed at the same time, It will be a breeze to defeat the thumb-hold players, also a massive advantage in close range combat because difference in milliseconds can be life or death. No disconnection, response delay, root request or system incompatibility issues.The stretchable grip makes it compatible with all 4.7-6.5” phones of iOS and Android device. The side of the phone will not be blocked, so you can charge it freely when playing. Hate that charging cable getting in the way when playing fierce survival games? We solved it for you. The triggers are set on the back not shoulder, so there is an angle and distance between your index finger and the cable.Works for PUBG Mobile/ Critical Ops/ Rules of Survival/ Knives Out/ Cross Fire/ Terminator 2 Judgment Day/ Survivor Royale ect, as long as the game allows customize and drag the keys.