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Question: caps lock light?
Document: I love this combo, the keyboard has a caps lock light, the keyboard has comfortable keys and it is sleek. The mouse fits firmly in your hand and it is comfortable too. Make sure you install the drivers correctly to get this to work, this is so great can't complain.
Also appreciate the Caps Lock light to alert me it is one. I have still to get used to the function keys which is a bit different than previous keyboards. Good price for both a keyboard and mouse. Love the cordless mouse. Would definitely recommend to others.
One bonus is that the 320 does not have a Caps Lock light (which annoys me) but the 520 has a green light on the actual Caps Lock key itself. Another nice feature is on/off button on the keyboard which isn't on the 320. Overall this is a really nice set up and I recommend spending a little more to get it over the 320.
There is an indicator light on the Caps Lock key but not on the Num Lock or the Scroll Lock. There is a roll of special function keys on top. Instructions with this product is minimal. They came in three pages of pictograms and of little use to the owner. Nevertheless, this wireless keyboard and mouse set is a good buy.
I have used Logitech products over the years and this is the first product that I have had problems with. Where is the light for the number lock? I can not find it on the keyboard. The number pad is unlocked and one cannot tell. The caps light is there. The feel of the keyboard is good. I will have to save to buy another product.
On the good side, the key board/mouse installed effortlessly, there is a light on the caps lock key (right where it should be IMO), and  the keyboard is full sized (just what I wanted). Unfortunately, the keys don't &#34;click&#34; and offer the tactile feedback which I also like. Disappointed, I am returning the item.
The receiver controls them both.What could be improved:  The on-off switched on both the keyboard and mouse are nearly microscopic. They could stand to be a bit larger. There is a Caps Lock light but no Number Lock light. It's not a fatal flaw, but it would be nice to have.Some reviewers were not happy about the Function keys. I do a lot of writing (and not much game-playing), so I like the default settings. If you want to customize them, you can.
The mouse, of course, peforms very well. The keyboard seems especially well-made and is heavier than others I've used. The touch is really great, and I no longer type letters that don't appear on the screen. There's even a light on the caps lock key--a convenient feature. This keyboard has all sorts of nifty function keys, and when I'm not busy using it, I'll figure out what they're for!
It's nice that it comes with a mouse, so that's one more USB port you can dedicate to other things. Both are comfortable and easy to use for work and leisure. I can't think of anything bad to say about it, except that I had to pay more to get the caps lock light. If that's a feature that's important to you, this is a great set to buy for your desktop. In fact, I'm writing this review using it, so you can feel confident buying it.
This combo is much, much nicer than the Logitech one that's slightly less expensive. I bought the cheaper one last year and a key broke off within the first month. The lack of a caps-lock light annoyed the crap out of me. This one types much smoother, the mouse is more accurate and the caps-lock light makes typing passwords much easier. It's well worth a few extra dollars.
Answer: Yes, there is a small green light in the top left corner of the caps lock key.  There is, however, no light on the scroll lock and num lock keys.