Please note that the keyboard and mouse in this link are not included in the product and are only used to display the keyboard and mouse models and images that this receiver is compatible with.
How to use the USB receiver?
When you receive the new receiver, you mustYou must download Logitech pairing software"ConnectUtility" on the official Logitech website and pair the new receiver to your mouse.
https://download01.logi.com/web/ftp/pub/techsupport/mouse/ConnectUtility_2.20.28_Logitech.exe
Package list:
1 x USB Receiver