LAS VEGAS ( TheStreet) -- The Consumer Electronics Show officially kicked off on Tuesday as more than 140,000 members of the technology industry flocked to the Las Vegas Convention Center.

The numbers at CES are staggering: over 3,100 companies are exhibiting 20,000 of the latest and greatest gadgets on a show floor that exceeds 1.85 million net square feet.

Sure, ultrabooks, connected TVs and smart cars ruled the show, but there were lots of other products that caught our eye. Here are five of them:

Lenovo's IdeaCentre A720

Lenovo calls its IdeaCentre A720 the world's thinnest all-in-one PC with a display thickness of less than an inch. The 27-inch device has a 10-point multi screen desktop with a hinge that will let you adjust the screen to virtually any angle (i.e standing up for reading or flat for playing games).

The A720, which will run on Microsoft ( MSFT) Windows 7, features an Intel ( INTC) Core i7 processor and up to 8GB of memory. The product also looks very similar to Apple's ( AAPL - Get Report) iMac.

We played several games on the A720, including Angry Birds and virtual hockey. While we were impressed with the device's graphics, its touch technology needed a bit of work, as we needed to press harder than normal on the screen for it to react.

House of Marley Bag of Rhythm Portable Audio System

House of Marley, which makes eco-friendly audio products like headphones and boomboxes inspired by the late reggae singer Bob Marley, has hit it big with its latest gizmo: the Bag of Rhythm. The portable soundsystem, which is made of birchwood and comes with a stylish carry utility bag, is the ideal tool or docking your iPod or iPhone at parties.

We were impressed with the Bag or Rhythm's sound system, comprised of dual 4.5 inch speakers, which delivered rich audio whether you're into Marley or metal.

The product, which retails for $350, will hit shelves in the latter half of 2012.

Samsung's Galaxy Note

Samsung's Galaxy Note combines the portability of a smartphone with a tablet's large display to create a category all of its own. The 5.3-inch device, which runs on Google's ( GOOG - Get Report) Android 2.3 operating system, also includes a stylus (called the "S Pen") which allows users to jot down notes and sketch pictures while they're on the go. The S Pen is designed to be as precise as a real pen and is pressure sensitive, meaning the harder you press on it, the thicker the line.

During CES, Samsung demonstrated the S Pen's capabilities by featuring cartoonists who sketched caricatures of conference goers using the device.

The Galaxy Note reminded us of a more advanced PDA. Its native apps include a scheduling program called S Planner and S Memo which lets users record ideas in all different formats, such as text, voice, photos and handwritten notes.

Pricing and release date for the device, which will run on AT&T's ( T - Get Report), LTE Network, has not yet been announced.

LG's 3D OLED TV: The EM9600

We haven't typically been bullish on 3D televisions in the past--every year they seem to be the "next big thing" but never gain any traction. But LG's 55-inch OLED TV is so fantastic it may break this trend and push consumers towards 3D.

The set had the most stunning display of any TV we've seen, with incredible colors and picture quality. We put on a pair of 3D glasses (extremely comfortable and light--no different than wearing sunglasses) and were amazed by how lifelike the footage was. We reached out to touch a swarm of butterflies that popped out of the screen and ducked when a soccer ball seemed to fly at our head.

LG's OLED technology (stands for "organic light emitting diode") is different than its previous LCD and plasma models, as it uses less energy because it works without a backlight. The TV is expected to be released in the second half of 2012 and no price has been announced.

VGo

The VGo, a robotic mobile device with telepresence, is the closest we've seen to The Jetsons while at CES. Let's say you need to attend an important meeting but can't make it. Enter VGo, a four foot tall, 17 pound robot which lets you see, hear and interact with your surroundings by controlling the device's movements through software on your own PC. The robot also features a small 6-inch screen with your "face" on it.

Besides the office, the VGo has other uses including healthcare organizations which want to monitor patients at a low cost and schools which can let students with special needs attend class remotely.

VGo works both through WiFi and an embedding with Verizon's ( VZ - Get Report) 4G LTE connectivity. The battery works for up to six hours before it needs to be recharged, although there's also an option for a 12-hour battery.

--Written by Olivia Oran in Las Vegas.

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