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: New Logitech Unifying USB Receiver for Mouse MX M905 M950 M505 M510 M525 M305 M310 M315 M325 M345 M705 M215 : Electronics
Replacing Your Wireless Mouse / Keyboard Receiver - ComeauSoftware.com
Carcasa/funda de repuesto para ratón Logitech M570 y 1 Juego de patas de ratón|Protectores de pantalla para tablets| - AliExpress
Amazon.com: Logitech New Unifying USB Receiver for Mouse Keyboard M515 M570 M600 N305 MK330 MK520 MK710 MK605 : Electronics
Logitech ERGO M575 Wireless Trackball with Smooth Tracking