I bought it because of the lack of wires and the classic key layout. But I got some kind of rattling all the keys and regularly blunting under-keyboard. As a result, I returned the K120 back. Let with a wire, but it works like a clock. Moreover, I have also been using the Logitech M705 mouse for a very long time, it has an excellent connection with the receiver. Why you can not do the same for the keyboard, a mystery.
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