The Hexound headset’s design is definitely drool-worthy. It’s just a concept for now, but we sure hope they become real. The headset can be detached and then they are turned into portable speakers. There’s also a solar panel in the headband.

Other specs include Bluetooth and intuitive controls. With these, you can listen to your music alone or share it whenever the mood strikes you, just by detaching. Hopefully these become real one day soon. I know I would buy them.

Rainbows are a beautiful and amazing creation of nature. But sadly, they are rare and don’t last very long. If only we had a machine that could make rainbows whenever we wanted them. Well we do and we can.

Michael Jones McKean’s artificial rainbow machine uses reclaimed rainwater and sunlight to create rainbows. It “uses a series of high-powered jet pumps and custom fountain nozzles to spray water into the air, creating the conditions needed for a rainbow to appear.” Maybe now he can work on some double rainbow technology. The machine is set to be installed at the Bemis Center for Contemporary Arts in Omaha, Nebraska next June.

3D is all the rage this year and even vending machines in Japan are getting into the action. That’s because Coca-Cola Japan has decided to give their traditional vending machine a face-lift with “three-dimensional curves” and design.

The company plans to install almost a million units across the country by 2020. The CFC free units which are also called 3D Vis will have solar panels, LED lighting, a display and the option to process multiple cashless payments.

Logitech has a new solar keyboard with an ultra-slim 1/3-inch profile and laptop-style chiclet keys. The ambient light solar panels on the top of either side should mean you’ll never need to plug it in to recharge. According to the company, its low-power integrated circuits can theoretically run for three months even if you leave it in a dark place.

It uses the same 2.4GHz Nano Unifying receiver that can be found in other Logitech wireless products, meaning that you’ll only need a single one of your netbook or set-top-boxes USB ports.

Philips has unveiled its Econova LED TV, which has been awarded the European Green EV 2010-2011 by the European Imaging & Sound Association. It was designed to be environmentally friendly without giving up performance.

This 42-inch LED TV uses just 40W of power in eco-mode and even comes with a solar-powered remote control, e-manual and it uses a recycled aluminum panel. The latest LED technology is also on board to reduce energy consumption by up to 60 percent, while still giving you best-in-class picture quality.

Tascam has introduced a new way to tune your guitar. It’s compact at just just 3.77- x 0.71- x 1.57-inches and the TC-1S claims to be the world’s first solar-powered tuner. It sports a rugged silicon shell, a USB port for those cloudy days and a carrying clip.

There’s also an integrated microphone and an input for guitar and bass tuning. It can also be calibrated to an external source. The device will be available in si colors (black, pink, orange, green, blue, white) this month.

I like a nice concept product because it lets us have a glimpse at what the gadgets of the future might look like. I have no doubt that at some future date solar power will be the main means of powering all manner of electronic devices. Today isn’t that day though with solar panels that are generally unable to power much of anything quickly or for a long time without room for a very large solar panel.

A new concept media player has surfaced that has the Sony brand. It’s not an official Sony concept apparently and it is called the Eclipse. The Eclipse has a solar panel on the back that gathers all the power the thing needs to operate. It has integrated speakers and a touchscreen for viewing video content.

The Seiko active-Matrix EPD watch will be available soon since the company has now decided to release this watch in Japan during the busy holiday season. It’s available in silver, gold and black. This one features a 300dpi EPD (Matrix Electrophoretic) display with a 180-degree viewing angle.

Some other features include world time with 32 cities, automatic synchronization via radio signal and a stainless steel case with a sapphire crystal. It also sports a built-in solar panel, offering roughly 30 months of display time on a full charge.

Hydrogen fuel cells are one of the things that promise to power our gadgets without needing to plug them in or use electricity. However, getting the hydrogen for the fuel cells to run on does require power of some sort.

A new device called the HydroFill is available that can be ran from an AC outlet or a solar panel. The device uses plain distilled water to generate hydrogen that it stores inside HydroStik containers. Those HydroStik containers can then be used in the MiniPak hand held fuel cell charger.

Green gadgets to keep your phone and other electronic devices charged are common today. A new green charger has debuted called the Kiwi U-Powered. The device has three solar panels and an internal battery.

The internal battery is a lithium polymer unit with 2000mAh of power. The device outputs 600mA maximum and the battery can also be charged from a USB port. Kiwi ships the charger with 11 tips that cover most gadgets from the iPhone to other major mobile phones.

You can talk about Solar Power, but are you ready to get serious about it? If so, this 20,000mAh battery comes with 29 adapters to charge your phones, MP3 players, cameras and laptops. It basically has all of your gadgets covered.

The battery charges in about eight hours of sunlight, while plugging into AC will get it done in only three. Once it’s full it will work with just about any gadget you throw at it. And that is the real benefit here. Solar versatility.

I am more of an indoors type. I’m not really into camping and while I do go outside with the kids a lot, we don’t stray too far from an outlet. However, a while back when a hurricane came through the power was out for hours and I would have paid dearly for a gadget like the Eton Scorpion.

The device is a power generator for USB charging gadgets that has both a solar panel and a hand crank to generate charging power. The gadget also has a number of other features inside.

If you want to go green, but aren’t sure where to start, maybe you can start with this alarm clock. It doesn’t use any electricity and it’s not solar powered. Instead, it runs on the power of water.

In fact, this clock runs on water for 1.5 weeks without having to refill the water tubes. It would make a great conversation piece and you’ll know that you are doing your part for the environment. Just in case you forget to water it, it also has a backup cell battery.

Soldiers of the future will have all kinds of cool gear that will not only keep them safe, but also make everyday life easier. HP is one of the companies working on this cool gear. They have some interesting display technologies for one. They are working on a prototype solar-powered lightweight computer display that is flexible enough for a soldier’s wrist.

The display is just 200 microns thick, and is capable of displaying data like maps or directions and will be powered by solar cells. Prototypes go to the military next year. Once they get them, they can be tweaked and get all of the bugs worked out.

The “YeZ” takes solar-powered car design one step further, by acting like a tree. Just like a tree, it sucks in carbon dioxide and releases it as oxygen. Plus there’s the whole tree design to really drive it home. The canopy over the driver and passenger looks like a big leaf.

The energy created by this process, small wind turbines fixed to the wheels and solar panels on the vehicle’s canopy are what will keep it rolling. Right now it’s just a concept, but who knows, you may be riding in one soon.