Wireless Keyboard Dongle Receiver Unifying USB Adapter Connect for Logitech Mouse Keyboard M215 M235 M325 M545 M705 6 Channel|adapter usb|adapter wirelessadapter wireless usb - AliExpress
Logitech's USB Unifying Receiver: one dongle to serve multiple input peripherals | Engadget
Logitech M705 Marathon Wireless Mouse – Long 3 Year Battery Life Ergonomic Sculpted Right-Hand Shape Hyper-Fast Scrolling and USB Unifying Receiver for Computers and laptops Dark Gray (Discontinued by Manufacturer) : Electronics
Price history & Review on 6mm Wireless Unifying USB Receiver Adapter for Logitech M185 M950 M720 M325 M235 M705 MK710 MK520 MK330 Mouse Keyboard | AliExpress Seller - AR Electrics Store | Alitools.io
Logitech M705 Marathon Wireless Mouse with 3Y Battery Life
Logitech Marathon Mouse M705 Review - RTINGS.com
Logitech Marathon Wireless Mouse M705: A Traveler's Review