Quote Originally Posted by 'Cernunnos',index.php?page=Thread&postID=90414#pos t90414
Logitech RX700 mice seem to ship with *different* RF keys. So I can't find any way to make them all slave off of one mouse. I tried resetting and so on, but no luck. A quick google didn't turn up anything on getting the keys to sync to a new mouse, either. AFAICT, I'm screwed and need to buy new mice or buy the usb mouse splitter from Vetra. I've got a support question in to Logitech about this, but no response yet.
Logitech's response:

There is no workaround in having one mouse to establish connection with multiple receivers.

The reason for this is because each of our products has a special Radio Frequency ID (RFID) tag embedded inside the receiver and the devices. The receiver will only be able to recognize the mouse or keyboard that is already pre-paired to the receiver during manufacturing.

Therefore, it is not possible to pair a mouse to multiple receivers at the same time. Each receiver will only be able to recognize and sync with the mouse that came together with the package.

This was done to avoid interference among different devices should they be connected within the same area to work with.

I hope the information above was able to address your query.