Finally, VR for your mouth

Teams have tried a number of different ways to get the lower half of the face into the act with VR. That includes, and I’m quoting directly here, “a tiny robotic arm that could flick a feather across the lips or spray them with water.” They’ve also largely ruled out a piece that directly covers the mouth — VR users ultimately didn’t like the sensation of having both their eyes and mouths covered at the same time, which, fair enough.
Ultimately, a team at Carnegie Mellon University settled on a much more practical method of offering added tacticity: ultrasound waves. A system developed by

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