How to pair more than one device with a Logitech receiver
Logitech Unifying Receiver for Connecting Multiple Devices
Logitech MK365 Keyboard and Mouse Combo 2.4GHz 1000DPI Unifying Receiver USB RF Wireless Ergonomical -Black,Black/Red,Black/Silver - Newegg.com
Logitech Nano Wireless Receiver For Logitech Keyboard and Mouse - Newest Revision (DUAL DEVICE / NON-UNIFYING) - HDEtron.com
Logitech MK540 Wireless Keyboard Mouse Combos Unifying USB Receiver Plug And Play Instantly Familiar Simply Advanced Reduce Nois|Keyboard Mouse Combos| - AliExpress
Amazon.com: Logitech MK470 Slim Wireless Keyboard and Mouse Combo - Low Profile Compact Layout, Ultra Quiet Operation, 2.4 GHz USB Receiver with Plug and Play Connectivity, Long Battery Life - Graphite : Everything Else
Amazon.com: Logitech New Unifying USB Receiver for Mouse Keyboard M515 M570 M600 N305 MK330 MK520 MK710 MK605 : Electronics
Logitech USB Unifying Receiver Dongle for Mouse & Keyboard 910-005235 (5 Pack) - Walmart.com
Logitech Unifying Receiver for Connecting Multiple Devices