CES 2014: Back-to-front keyboard for tablets
7 January 2014 Last updated at 12:56 GMT
The BBC's North America technology correspondent Richard Taylor gets a demonstration of the TrewGrip mobile keyboard at CES 2014.
They keyboard attaches to a tablet and is operated by typing on a Qwerty-style keyboard on the back of the device.
Follow Richard Taylor on Twitter @RichTaylorBBC