RF and blue-tooth. With rf, they are not individual sync. but might still be a good idea to get one make from the same company, and in this case..Logitech.
I have a Dell Logitech wireless keyboard that won't work. I have changed batteries and resynced with the receiver. Is there anything else I can do? If it is shot, can I just replace the keyboard, or is each keyboard keyed to a specific receiver. I can find a used keyboard to replace it with but wondered if it will work with my receiver. Thanks

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