CouCou support user’s with limited mobility who are unable to use the touch screen to navigate their Apple devices, to navigate the screens, select any item and also emulate complex gestures (example pinching, dragging, etc) by simple contact-less touch using simple NFC/RFID tags.

Switch Control is an accessibility features available in iOS, to help users with limited mobility to control their entire iOS devices from Apple.

This video provides a basic demonstration of this functionality.