Level up without a 100 dollar controller. TriggerPro's 4-finger mechanical triggers clamp onto any phone in seconds and give you true simultaneous aim-and-fire - 4 fingers working at once instead of 2 thumbs. Zero delay, zero battery, zero setup. Alloy fire buttons feel like a real controller, and the included fabric finger sleeves cut sweat and friction for marathon sessions. Works with PUBG Mobile, COD Mobile, Fortnite, Free Fire and every shooter with on-screen triggers. Fits phones up to 12mm thick with case on.