Logitech Mouse - Pairing with Original Non-Unifying Receiver - YouTube
How to Pair Logitech Mouse or Keyboard to USB Receiver - YouTube
Amazon.com: Logitech M720 Triathalon Multi-Device Wireless Mouse – Easily Move Text, Images and Files Between 3 Windows and Apple Mac Computers Paired with Bluetooth or USB, Hyper-Fast Scrolling, Black : Electronics