Logitech M720 Triathlon Multi-Device Wireless Mouse, Bluetooth, USB Unifying Receiver, 1000 DPI, 8 Buttons, 2-Year Battery, Compatible with Laptop, PC, Mac, iPadOS - Black - Optical - Wireless - Bluetooth/Radio Frequency -
Zone Wireless Plus Unifying + Audio Receiver
Logitech Wireless Mouse M317 with Unifying Receiver – Black - Newegg.com
Logitech® K270 Wireless Keyboard, USB Unifying Receiver, Black - WB Mason
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 Unifying Receiver for Connecting Multiple Devices
Logitech Wireless Mouse Gamer M235 Original Mice Unifying Receiver For Lap Top Pc Ergonomic Optical Mini Computer Mouse - Mouse - AliExpress
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
Amazon.com: Logitech USB Unifying Receiver - 2 Pack : Electronics