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
How to use the dongle of one wireless mouse for another of the same brand - Quora
Logitech M510 Wireless Optical Mouse - Laser - Wireless - Radio Frequency - 2.40 GHz - Gray, Black - 1 Pack - USB - 1000 dpi - Scroll Wheel - 7 Button(s) - Symmetrical - Servmart
Logitech Unifying Receiver for Connecting Multiple Devices
Logitech MK270 Wireless Keyboard and Mouse Combo | Dell USA