
Within a couple of months after the purchase, there were no communication problems, the range was ~ 3 meters, but, as usual, one fine day, the mouse fell off at first, and this became a regular occurrence, and after a couple of days, the keyboard began to disappear , and now they work only in the immediate vicinity of the receiver. Replacing the batteries does not help, installing native software too. Other users have descriptions of the same problems on the network, apparently the kit is not quite finalized.

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