Here is an under desk exercise bike that lets you generate your own power for your USB devices. The eveia exercise bike can generate enough power for your headphones, Apple Watch and wireless keyboards after a couple of hours of pedaling. It connects to your mobile devices and fitness trackers.
More gadgets like this: here
eveia works with Apple & Android health apps. It comes with a virtual hiking app to keep you motivated. Doesn’t make a whole lot noise either. You can find out more about it here.
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