While devices like Microsoft's Kinect need to detect your movement in three dimensions—thereby needing some advanced hardware—Singlecue uses relatively simple cameras. The marvel is its image recognition: it can pick out a single finger against every color, texture, and object in its field of view. To avoid confusion, the Singlecue stays fixed on the first finger it sees and resets once that finger is put down. The current model has a 35° field of vision though future models will have 70°. Photo 3 of 4 in A New Product Controls Your Smart Home with a Wave of Your Finger by Zach Edelson

A New Product Controls Your Smart Home with a Wave of Your Finger

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While devices like Microsoft's Kinect need to detect your movement in three dimensions—thereby needing some advanced hardware—Singlecue uses relatively simple cameras. The marvel is its image recognition: it can pick out a single finger against every color, texture, and object in its field of view. To avoid confusion, the Singlecue stays fixed on the first finger it sees and resets once that finger is put down. The current model has a 35° field of vision though future models will have 70°.