Logitech's Wireless Solar Keyboard K750 charges via an in-built solar panel, that even in an abyss will power the device for 3 months when fully charged.
The Logitech Z313 speaker system provides a bigger and better sound for your multimedia than can be produced by your computer's in-built speakers. A 2.1 speaker system, 2 speakers and a subwoofer, the Logitech Z313s connect to a computer using the standard 3.5 mm audio output jack.