ASUS ROG Tessen Gaming Mobile Controller for Android (foldable, one size fits all, on-the-fly key mapping, RGB lighting, 500Hz polling rate)

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Portable design: Foldable design enables ultimate portability, easily slipping into any bag
One size fits all: Includes support pads of varying thickness to accommodate phones and cases of all sizes
On-the-fly key mapping: Rear paddles can be programmed on-the-fly for multifunction commands
Precise control: 18 mm ALPS joysticks with 22° movement angles for precise control
Linear controls: Analog top triggers are ideal for accelerating and braking in racing games