Have you ever wondered how much energy you waste leaving your PC sitting idle while you're away from your desk? Quite a lot it would seem, and all of it adds up over the years creating a hefty carbon footprint. That's where the Eco-Button steps in. Plug this little gizmo into your USB port and give it a tap every time you have to leave your desk. Whether it's for a long drawn out meeting or a quick lunch the Eco Button makes sure that your PC and monitor draw as little power as possible. Not only do you get to see how many carbon units you've saved when you reactivate the PC but the Eco Button software will also show you how much it would have cost to leave the computer on - genius, and fun too!