Logitech Cordless Desktop MX 5500 Revolution Bluetooth Mouse and Keyboard

Pros: Mouse is perfect

Cons: Keyboard is okay

Summary: Mouse:
The mouse fits well in my hand. It is just very ergonomic. It has a nice scroll on it, although i know of higher end Logitech mice with better. I do not recall its number, but it has a continuous scroll, where you can either have the mouse scroll a while with one flick or a typical scroll...unfortunately not on this mouse. It also has a side scroll, where the scroll wheel tilts along with a battery monitor (turns on when low), zoom and search buttons next to the left button, and forward and back buttons on the thumb. However, at work i have a mouse with the forward and back on the side, but it is a cheap worthless mouse and they are too easy to accidentally press. These buttons rest above your thumb so it is hard to accidentally push.

Keyboard:
I love the keyboards feel, hard to explain but it sits well and is easy to type on. Somebody claimed of no num-locks button, which isnt true, at least on my version. However, i feel that the extensions that are put on the keyboard are sub-par. The multimedia keys work well in Windows, but not in Linux - should not be a problem for most, but for those with Linux don't expect them to work. I believe the work with sum programs but not all. Also they are impossible to see in dim light, but that is to expect. The screen on the keyboard is useless. You can set an alarm, but it is hard to set and not loud at all. There is a clock on it, but not backlit so it is hard to see it in the day, let alone dim light. Plus who uses a clock on a keyboard when your monitor always displays it for you. The screen seems like a waste of battery to me. The side of the keyboard (left) has a couple of nice buttons, like search computer, internet, goto folder, etc. and a "Dynamic Zoom." This isnt a button to zoom in or zoom out, but you place you mouse on the bottom of the bar and move up to scroll in and opposite to scroll out. It is nice but i am a ctrl+wheel kind of guy. There is also a 100% "button." if you put your finger on this spot it will zoom back to 100% with no force downward. However this is a bad design flaw. When i am typing in word i zoom way in due to my high resolution screen. My little finger will accidentally hit this and zoom back to 100. (I dont use my little finger like i am supposed to while typing, i only use it for shift/ctr) So due to some substantial design flaws i do not like the keyboard.

Wireless:
The wireless receiver is quite large (comparatively). It is approximately 2" out of the USB port, but it has to control a mouse and keyboard, and is not made to be portable, so i dont have complaints. The wireless range is long enough for me and i have not tested it to its extent so i cannot comment on this.

Battery:
In the 9 months i've had this, i have changed the two double AA batteries in the mouse twice, second time happened last week, and i have not changed the keyboard batteries yet.