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Keyboard is perfect.. Mouse won't move easily. I cleaned it the bottom with a vacuum cleaner and the problem persists.
I called Logitech customer service. They are very nice and they sent me a new set.
The mouse starts to straggle maybe 2-3 weeks after use. I tried changing battery but no luck.
Also I noticed it didn't work well on white pads. It needs black pad.
I gave up with this set !
I had a cheap non brand set that still working pretty solid but very battery hungry.
I'm surprised this product having all these positive feedbacks.
Matériel super bon mais le clavier ne s'allume pas sur le num lock c'est le seul défaut que j'ai trouvé
very good wireless connection and nice layout, I'm glad I got this on sale. Not sure if this is common or not but the key's letters seem to only be good quality stickers instead of part of they key itself. overall very happy with it for what I paid!
Bought this same combo unit 2 and a half years ago and for the past several months the left Ctrl key keeps sticking. I have removed the key several times and cleaned the space below the key but the problem remains -- push the key down and it stays down. I use this key a lot and whatever mechanism pops it back up isn't working as it should. Drives me crazy.
Right now I'm shopping for a new combo but I'm reluctant to purchase this product again.
System connected immediately with Linux OS, no problems. Mouse is basic and on the small side but comfortable to use and does what I need/expected. Keyboard works well and has all the features I need. I haven't had the combo long enough to judge the battery life but the batteries all still show full charge after a couple of weeks use. This is a very usable combo for a reasonable price.
Mouse described as full size but it is somewhere between a mini/laptop mouse and a full size mouse (I have other full size logitech mouses, this one is noticeably smaller, especially in width). Mouse is ultra basic/minimal and keyboard is a full keyboard with a few extra functions, nice clean standard layout, no french legend on keys which eliminates lots of confusion and clutter). Keyboard is medium quality, and the entire keyboard flexes somewhat but is still ok. This is decent value only if on sale for a big discount; if I had paid regular price, I would have returned it as not being worth the money. It also installed nice and quick, no setup or driver needed.
Mouse is okay but keyboard is average.
This is the second MK520 set that I've bought. It replaces the identical set we have been using for the last 3 years. The original set still works fine, but some of the letters faded out and the keyboard is full of dust (the PC was heavily used on a daily basis for 3 year).
Mouse needs new batteries every 3-4 months and keyboard requires new batteries only once a year every.
In general, I am happy about this combo.
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