Going green is more or less on the agenda of most companies, as that is the way forward to the future. The YoGen device is one that takes the eco-friendly route, offering off-the-grid charging for your devices while giving your arms a good workout. Yup, you’ve guessed it – it uses an unorthodox technique of a pull string, where the product is descibred as “produces a previously unmatched level of charging power when driven by the repeated pulling of a cord, in a way which somewhat resembles the action of a Yo-Yo.” No idea on how many pulls will it take to juice up an iPod, but it does come with a range of connector tips that will cater for a variety of devices. It will be available for $40 a pop after November 15th, making it a suitable stocking stuffer for your eco-friendly family members this coming holiday season.

Source: TreeHugger