Logitech Unifying Receiver for Connecting Multiple Devices
Amazon.com: Logitech M510 Wireless Computer Mouse – Comfortable Shape with USB Unifying Receiver, with Back/Forward Buttons and Side-to-Side Scrolling, Dark Gray : Electronics
Logitech Mouse - Pairing with Original Non-Unifying Receiver - YouTube
Connect multiple Logitech wireless devices using same USB receiver
How to Pair a Logitech Mouse
Logitech Unifying Receiver for Connecting Multiple Devices
How to Pair Logitech M705 Mouse with a Non-Unifying Receiver (for PC) - YouTube
How to pair more than one device with a Logitech receiver