More than 31,000 companies showcased 20,000+ gadgets and technological innovations, at one of the world's largest electronics show - Consumer Electronics Show (CES). The annual event was held from Jan. 10 to Jan. 13.

Manufacturers and developers showed several cutting-edge products, including smartphones, ultrabooks, concept cars and home theater systems, as well technologies like gesture-based software.

The major highlights of the show, drawn from a mammoth list, include LG's 55-inch OLED TV, Microsoft's Kinect for PCs, Razer's Project Fiona concept gaming tablet, the Sony Crystal LED TV, Intel Ultrabooks, BlueStack Windows 8 and the Nokia Lumia 900 smartphone.

Check out photographs of some of the more interesting products at CES 2012...

CES 2012 Highlights Smartphones, Tablets and Other Great Gadgets
Apprentice guitar controller for the iPad at the Consumer Electronics Show (CES) opening event in Las Vegas January 8, 2012. The guitar holds an iPad in its shell which runs the software for the device. The world's biggest technology trade show will feature razor-thin laptops, powerful new smartphones and fancy flat-screen TVs, but talk in the cavernous halls of the CES may focus on whether the show itself has a long-term future. Reuters
CES 2012 Highlights Smartphones, Tablets and Other Great Gadgets
Rohan Marley, son of the late reggae singer Bob Marley, demonstrates the The House of Marley company's $349.99 Bag of Rhythm portable audio system for the iPhone at the Consumer Electronics Show opening event in Las Vegas January 8, 2012. The CES trade show will feature razor-thin laptops, powerful new smartphones and fancy flat-screen TVs, but talk in the cavernous halls of the CES may focus on whether the show itself has a long-term future. Reuters
CES 2012 Highlights Smartphones, Tablets and Other Great Gadgets
A Kivic One is displayed during "CES Unveiled," a media preview event, at the 2012 International Consumer Electronics Show (CES) in Las Vegas, Nevada January 8, 2012. The new device, available in March, streams video from a smart phone to other devices, like a vehicle video player. The CES trade show will feature razor-thin laptops, powerful new smartphones and fancy flat-screen TVs, but talk in the cavernous halls of the CES may focus on whether the show itself has a long-term future. Reuters
CES 2012 Highlights Smartphones, Tablets and Other Great Gadgets
Panasonic Toughpad at the 2012 International Consumer Electronics Show (CES) in Las Vegas, Nevada January 9, 2012. Reuters
CES 2012 Highlights Smartphones, Tablets and Other Great Gadgets
A Nokia Lumina 900 Windows smartphone is displayed during the 2012 International Consumer Electronics Show (CES) in Las Vegas, Nevada January 11, 2012. CES, the world's largest consumer technology tradeshow, runs through January 13. Reuters
CES 2012 Highlights Smartphones, Tablets and Other Great Gadgets
The new Mercedes CL drives on stage for the keynote by Daimler AG CEO Dieter Zetsche at the Consumer Electronics Show in Las Vegas Reuters
CES 2012 Highlights Smartphones, Tablets and Other Great Gadgets
A Lamborghini Aventador LP700-4 attracts attention from showgoers during the 2012 International Consumer Electronics Show (CES) in Las Vegas, Nevada, January 11, 2012. Reuters
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