Re-Program your keyboard & mouse receiver with Logitech Connection Utility - YouTube
How To Pair Logitech Unifying Receiver With Mouse And Keyboard | Logitech | Get Fixed - YouTube
How to Connect a Logitech Wireless Mouse to a Unifying Receiver
Logitech Unifying Receiver for Connecting Multiple Devices
Amazon.com: Logitech USB Unifying Receiver, 2.4 GHz Wireless Technology, USB Plug Compatible with all Logitech Unifying Devices like Wireless Mouse and Keyboard, PC / Mac / Laptop - Black : Electronics
How to Pair Mouse & Keyboard with Logitech Unifying Receiver