Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: How do you know when caps lock is on? Is there a light or something?
Document: I have used this keyboard now for many months and find it comfortable and easy to use. I like the cordless feature very much and it work well with the mouse. My only caveat -- and if there is something I am not doing right, I'd love to hear about it! -- is that there is no way to tell if you have the Caps Lock key on. On my other keyboards, there was a small light which indicated that it was on.
Since I there is no light and since passwords do not show when typing them, I'm constantly finding that when I can't log into sites I don't know if I typed the password incorrectly or that caps lock was on so I am forced to hit the caps lock key and retype the password in trial and error fashion. It's a real pain IMHO. Other than that, they keyboard seems ok and the mouse works well with it.
This is an excellent product. I owned one before, but for the children doing something to mess it up, I would not have needed another. But they did and I did and so a new one was bought. However when it arrived the caps lock did not work and I needed to use it so desperately by then I just did not bother to report it.But this is an amazingly wonderful product!! !
The only thing I found wrong is that it does not have a light indicator if the Caps Lock is on, overall it is a great product.
Would have given a 5, but the box came opened and I had to spend some time cleaning out dog or cat hair from the mouse and it looked like the keyboard had something spilled on it. As for the products, the mouse is amazing and the keyboard is awesome. Takes a little getting used to the caps lock button on the keyboard being narrow but the wrist rest is extremely comfortable and the keyboard types really well with the wave design fitting well to the fingers.
I was leery about the wave design, but it's easy to get used to. I loved the fact that I was able to use the same wireless receiver as my mouse. I originally bought this keyboard for home, but I ended up taking to work to replace my wired keyboard. It works great. Only minus is no indicator light for caps lock or number lock.
I used the K350 for a while, and it worked just fine. But, to get on-screen Caps-lock and Volume indicators, I installed Logitech's Setpoint 4.80 software. Now, the Caps-lock and Volume indicators work just fine, but the keyboard freezes frequently. And, apparently, Logitech doesn't know what to do about it. You're better off with a cheaper keyboard, which is what I now use with my new Windows 7 computer.
This is a nice keyboard just very large and makes typing a little clunky, my husband likes it but his fingers a larger then mine. Works great no problems with loss of connection. I like the slight wave design and wrist rest is very comfortible. I do wish it had lighted symbols to let you know if caps lock is on or num lock is activated. That makes it more of a pain when putting in passwords.
-- Update  Now after 6 months, Keys are hard and no longer smooth. Shift and caps lock don't work properly due to its size and everything your stroke has to be a the center for the key to depress correctly. Changing my 3 star to 2 star.After 3 months of Use, Keys are wiggling. There are not that tactile as my Kensington. Major flaw is no light indicator for Caps lock or num lock and this alone a major fault.
It works well, is quiet and fast, ergonomic. The only drawback about this keyboard is that there is no indicator on the keyboard when your num lock and caps lock are on or off.
Answer: There is no light on the keyboard with the Cap Lock, I know the lock is on when everything is in Caps.