Logitech K400 Plus Touchpad Keyboard for TV connected PC
Logitech Unifying receiver - Wikipedia
Logitech K400 Plus Touchpad Wireless Keyboard Black - Usb Wireless Connectivity - On/off Power Switch - 2.40 Ghz Operating Frequency : Target
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 K400 Plus Wireless Touch Keyboard | Dell USA
Logitech K400 Plus Touchpad Keyboard for TV connected PC
6 Channel Wireless Dongle Receiver Usb Adapter For Logitech Mouse Mx M905 M510 Keyboard K400 Wireless Receivers Dropshipping New - Wireless Adapter - AliExpress
USB Dongle/Receiver For Logitech K800,K750,K710,K700,K520,K400,360 Unifying | eBay