Connecting a Logitech device to your Unifying Receiver (Windows and Mac) - YouTube
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
Logitech Connection Utility 2.30.9 Free Download for Windows 10, 8 and 7 - FileCroco.com