South Korean tech giant Samsung unveiled an invisible keyboard for smartphones this week which allows users to type messages on a table or hard surface -- without the need for any extra hardware. The feature, called “Selfietype,” is on display at the CES consumer tech show in Las Vegas.

The technology tracks the hand movements of the user with the phone’s camera and then notates the message on the phone’s screen. The technology was developed by Samsung’s C-Lab branch, which is an incubator for innovative ideas at the company. Other technologies showcased by Samsung C-Lab at CES include Sunnyside, a window-shaped device that produces artificial sunlight and Becon, a scalp home-care service that helps people prevent hair loss.

Some of C-Lab’s wacky ideas have become actual products by Samsung, such as a health-tracking belt called “Welt.” The device measures waist-size, physical activity and the food intake of an individual.

The CES convention in Las Vegas showcases the latest consumer technologies, featuring 4,400 exhibiting companies. The convention is owned and produced by the Consumer Technology Association, which represents more than 2,200 consumer tech companies in the United States.

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