The Logitech Deluxe 660 Cordless Desktop is a simple wireless keyboard and mouse. The USB receiver is great for general use and is sufficient for the average PC user, as the range is pretty good and generally works even if the receiver is hidden away. Installation is very simple and easy, you just plug in the receiver to your USB port, insert batteries into the keyboard and mouse and you're ready to go. The only problem with having a USB receiver is that in certain motherboards (including mine) the advanced user cannot access BIOS functions because the USB ports aren't activated until after boot-up, and this can cause problems when trying to upgrade hardware.

AAA batteries power the wireless keyboard, and while other people have said the battery life is very long lasting I find that after a month of daily use the keyboard starts to miss letters as you type, and you have to press the letter a few times before it works. This can be very frustrating but a quick change of the batteries rectifies this problem, so I am putting it down to the battery power being low. The mouse uses AA batteries, and the battery life of these are even shorter so I have resorted to using a generic mouse that I had lying about. Generally I think the battery life is poor but bearable for the average user.

The keyboard is bulky and the buttons are pretty stiff, and the basic choice of button functions make this a bad choice all-round for the average gamer or advanced user. Saying this basic users will find that the CTRL functions are written on the bottom of keys (such as CTRL + Z for undo, "undo" is written on the "Z" key) and are very useful if you need a reminder of keyboard shortcuts.

In general, the wireless function is very nice to have and can be handy for basic users, but sometimes basic wired set-ups are better compared to this budget option.