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I threw out my AA batteries after using Logitech's new solar-powered keyboard

The Slim Solar+ keyboard is powered by exposure to normal indoor lighting and can be wirelessly connected to three different devices at once.

This also means you don't need to stick the keyboard under a spotlight to generate enough power; "normal" lighting conditions work just fine, including the overhead fluorescents in the office. The accompanying app, Logi Options+ lets users fully customize the function keys and remap to their preferences, but it's not required, as the Bluetooth connection makes it expressly plug and play. The app highlights the customizable keys where you can set up your own actions, supporting some rather complex sequences like opening a new tab in the browser, and navigating to a specific website.

Get the Android app