How about wearables to control computers?

Researchers at the Georgia Institute of Technology have invented some wearable technology that will let people control their computers and mobile apps with hand gestures. 

http://www.machinedesign.com/mechanical/ring-and-wristband-let-computers-read-gestures?NL=MACD-001&Issue=MACD-001_20180605_MACD-001_300&sfvc4enews=42&cl=article_2_b&utm_rid=CPG05000000559845&utm_campaign=17677&utm_medium=email&elq2=a755b230b5924d659896c46ff63679f8