Sony, Google and Yahoo have generated plenty of headlines at this year's Consumer Electronic Show in Las Vegas. But some of the stocks seeing big momentum from this year's expo are more under the radar.
Take iRobot, the technology company behind home-cleaning robots. The company unveiled its newest cleaning machine at CES on Tuesday—the Scooba 450 floor scrubber. At a retail price of nearly $600, the robot uses a three-step cleaning process to mop tile, wood, linoleum and other surfaces. Investors like what they see from the Scooba so far; iRobot closed up almost 4 percent on Wednesday.
Another big stock gainer at CES was Flir Systems, closing up more than 3 percent Wednesday. Founded in 1978, the company designs, manufactures and markets thermal imaging infrared cameras. The technology can be found in industrial and government markets requiring night vision, but this year at CES the company revealed a thermal imaging device compatible with iPhone 5 and 5S. Now, iPhone users can use the FLIR ONE device to generate high-quality thermal images.
Human interface technology company Synaptics is also seeing some momentum from CES this year. The company's stock spiked 9 percent Tuesday; that's after a 73 percent gain in 2013. A leading developer in touch screens for mobile devices, the company presented a new array of keyboard and touch-sensor technology.
—By CNBC's Dominic Chu and Elizabeth Schulze; Gina Francolla contributed to this report.