Gamesir's X2 Bluetooth controller can help turn your Android phone into a Switch-like emulation machine. It functions with iPhones too, but the Apple's 'walled garden' stance limits usefulness.
GameSir X2 phone gaming controller review: Budget Backbone
GameSir introduces its X2 Bluetooth Mobile Gaming Controller and F7 Claw Tablet Game Controller
GameSir X2 Bluetooth version is a universal mobile gaming controller which is compatible with both Android and iOS mobile devices. This is another smart game controller which is perfect for cloud gaming, and iOS users will be able to enjoy Apple Arcade and MFi games. It can be easily attached to the phone.
GameSir X2 Mobile Gaming Controller Bluetooth Version
GameSir X2 Bluetooth Mobile Gamepad Wireless Game Controller for Android and Apple iPhone Cloud Gaming Xbox Game Pass STADIA - AliExpress
GameSir X2 Lightning Gaming Controller review
GameSir intros the X2 Pro mobile gaming controller for Android smartphones - News
GameSir X2 review: A great mobile Bluetooth game controller that fits most phones
GameSir X2 Bluetooth Pubg Gamepad Joystick Android Or Ios Controller Gaming Joystick For Cloud Games Platforms xCloud,STADIA - AliExpress
GameSir X2 Pro controller review: Dominate the game. - Pocketables
GameSir X2 Bluetooth Controller Review - Mobile Gamers' Best Friend? - MobileTechTalk
GameSir introduces its X2 Bluetooth Mobile Gaming Controller and F7 Claw Tablet Game Controller