The annual Consumer Electronics Show took place last week in Las Vegas. Here are some of the coolest gadgets revealed for 2012.

TheKube2

The miniscule theKube2 MP3 player has been sold through 7-Eleven stores in Singapore and has now made its way to the U.S. Manufacturer Bluetree Electronics calls it the "smallest touch MP3 player in the world."
It is made of aluminum, has changeable skins and comes with a 4GB microSD card, which can be upgraded to hold more songs.
TheKube 2 will retail for around $60.

Sportiiiis

Sportiiiis is a virtual personal trainer that can attach to any pair of sunglasses to give the user visual and audio cues about their workout performance. The user stores their workout goals and the boom communicates with an ANT+ device, such as heart rate monitors, foot pods and bike sensors to see if the user is meeting their targets. If the user is taking it too easy or going too hard, it will alert them with a blinking red light. If they are on target, it lights up green, and if they are somewhere in the middle, it blinks yellow. The Sportiiiis also delivers audio prompts to update performance, and can cycle through heart rate, cadence and pace stats when the user double-tapps the side of the device.
The Sportiiiis is available from 4iiii.com for preorder now and costs $199.

Kinect for Windows

Microsoft's announced it would release its motion sensing input device Kinect for PC in February of this year. Microsoft claims it updated the multi-core exemplar, making the device 20 percent faster than it was in the last release. Users must run the Windows 7 operating system and Windows 8 developer preview.
Retail price will be around $250.

Splash 100

The Splash 100, from the German pro-audio company Behringer, is a spherical Bluetooth waterproof speaker that floats in your pool. The speaker will have a 230-foot range and deliver 3.5 hours of sound from its rechargeable battery. It will be released later this year and will retail for around $99.

Project Fiona Gaming Tablet

The company Razor recently introduced Project Fiona, a gaming PC that takes the tablet form and adds controls on either side of the screen. The tablet has a 10 inch multitouch screen with a dual analog stick design on the sides. The tablet will run all existing PC titles without any need to port the games.
The system, which will be released later this year, is projected to retail around $1,000.

SpareOne

Targeting consumers as an emergency cell phone, the SpareOne cell phone is the first phone to be powered by a single AA battery. The phone operates on the GSM dual band network, gets 10 hours of talk life and holds a charge for 15 years - the same shelf life of the Energizer Ultimate Lithium battery, the recommended battery for the SpareOne. Users provide their own SIM card, but 911 calls are available without the card. The phone also has an integrated flashlight.
The SpareOne phone will retail for $49.99.

Intouch Smart TV Camera System

The Intouch Skype HD camera system brings 720p web video chat to your regular TV screen and includes apps like YouTube, Google News and Weather and a full web browsing experience, supported by a full QWERTY remote control with directional scroll buttons. The camera can be placed on top of the TV or any nearby flat surface and has a range of 30 degrees.
The camera system will be available in March and costs $199.99.

mRobo Ultra Bass

mRobo is a portable speaker that doubles-up as a dancing robot. The device allows users to upload around 500 songs and select tracks with a remote. The music is played through an integrated speaker, with the ability to produce bass at 40Hz. mRobo, which can listen to its own music, music from other devices or music streamed via Bluetooth, and will instantly transform, growing a head, legs and arms, will move through a series of pre-programmed dance moves to virtually any genre of music.
mRobo Ultra Bass will launch in the fall and is expected to retail for $199.