Summary: The USB transmitter/receiver has a large blue LED that flashes every single time you hit a key. Very annoying when you're using it on a laptop, but nothing some electric tape can't fix.
Pros: The keyboard is slim, the keys depress easily and silently, it's wireless, the layout is standard size, with no ergonomic baloney that you have to adapt to, plus there are some media keys. It feels like a high quality laptop keyboard, but has a number pad.
Cons: You have to hit the keys very hard for them to make contact. I bought this keyboard because when I tried it in the store, it felt like it would have a good laptop-like response (I'm using this as a second keyboard for my laptop for serious typing). The problem is that when you hit the keys as you would on a laptop, they don't register. You have to really go out of your way to slam them down, which makes a lot of noise and is more tiring on your fingers than it should ...
Pros: I do really like the sleek design - typing papers is actually fun with this keyboard.
Cons: I started having problems with Windows responding to the keyboard. After spending more than the bottom-line price for a keyboard, I shouldn't have to restart my computer every once in a while just because my keyboard stopped functioning properly
Cons: Apparently low quality control. Keyboard almost too flat without good tactile way points, making you have to look at it more often than you would normally. Made in China, HP didn't even bother to put the model number on their support website.
Summary: I purchased this keyboard a few months ago due to it's small size. It is very hard to find a compact, slim keyboard with a built-in numpad. The keyboard functions well and the keys themselves are very to touch but there are two major areas of concern I have with this keyboard. First concerns the battery.