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I have multiple wireless Logitech keyboards with mice working in the same room, and they never interfere with each other.

But the dongles are not marked as to which keyboard and mouse they work with.

So whenever we have to move and an assistant just throws it all in a box I would have a job to figure out what works together. There are a lot of permutations.

Question: How do they coexist without interfering with each other? (Is there a limit to the number I could have in an office space?) And what if it all gets mixed up, Is there a simple method of sorting them all out?

--EDIT: One lesson has certainly been learned. I should never have installed the keyboards and mice before the move. We don't know when, but I know it will happen eventually. I should have just kept these new ones in their original boxes and made the upgrade part of the eventual move, one at a time.

SDsolar
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3 Answers3

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There are at least two types of Logitech dongles (the modern ones, without "pairing" button). The newer ones are so-called "unified receivers" and marked with orange flower-like logo. The "unified receivers" can be modified with Logitech software and can be paired with any qualified device.

Older dongles (of exactly same shape) were paired only to the particular device, so they must be kept together, and usually the devices have an internal compartment to hold the dongle. Yes, it is inconvenient.

Each Logitech RF device has an unique identifier out of 65,000 available, and proprietary Logitech RF communication uses 78 channels (in 2.4GHz band). This white paper from Logitech indicates that interference-free communication can work up to 78 devices in 10m proximity.

Ale..chenski
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The USB dongles are usually "Logitech unifying receivers" and, while initially paired with a particular device, are not permanently tied to it. You can pair a device with the dongle using Logitech's software.

According to Logitech's support article about it, a single unifying receiver can pair with up to 6 Logitech devices.

jamesdlin
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The dongle and the mouse/keyboard have a "connect" button on them, usually red. Press the connect on dongle, then on the keyboard. Repeat for the mouse. Now they are "connected" and won't talk to or hear other dongles, mice, or keyboards. No clue about limits though.

Chindraba
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