Volume adjustments and the mute key work perfectly as well. There are also function key shortcuts for launching the default media player and controlling playback. I hate installing third-party software even if from a trusted source and I was glad to find that even function keys for launching the default web browser, email client, system search, and calculator work right out of the box. Once I pushed the tiny USB receiver into my Windows 7 laptop, the keyboard began working within a few seconds. Assuming that there is a decent amount of sunlight or artificial light, this keyboard claims to keep on going. While some manufacturers have created rechargeable solutions, having to plug-in with cables is still a hassle for some users. Fortunately, the eco-friendly Logitech Solar Wireless Keyboard (K750) comes to the rescue with a simple solution. Having to look for a pair of freshly charged batteries while trying to meet a deadline or hand in a term paper is not fun.

Wireless keyboards might be all the rage, but just about every model has one major flaw: running out of power.

Ogitech solar powered keyboard