The Logicool HID-compliant Unifying Mouse is a wireless mouse made by Logitech (marketed as "Logicool" in certain regions like Japan). It utilizes Logitech's Unifying Receiver technology, which allows you to connect multiple Logitech devices (such as a mouse and keyboard) to a single USB receiver. The HID-compliant Unifying Mouse driver is a software component that ensures the mouse works properly on your Windows PC, especially if you want to use additional features like customizable buttons or advanced mouse settings.

The HID-compliant part of the name refers to the Human Interface Device (HID) standard, which is a widely-used protocol for input devices such as mice, keyboards, and other peripherals. The Unifying Receiver lets multiple devices work seamlessly without the need for additional USB ports, by using a single receiver.