Logitech K400 Plus Wireless Touch TV Keyboard With Easy Media Control and Built-in Touchpad, HTPC Keyboard for PC-connected TV, Windows, Android, Chrome OS, Laptop, Tablet - Black : Electronics
Ubuntu: Issues with Logitech K400 plus in Ubuntu 16.04 - YouTube
Logitech K400 Professional Wireless Touch Keyboard - Wireless Connectivity - RF - USB InterfaceTouchPad - Compatible with PC, Windows, iOS, Android, Linux - Mute, Volume Up, Volume Down Hot Key(s) - B - Newegg.com
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Quick Logitech K400 Plus Review: a compact HTPC keyboard | SHB
Using Logitech K400 wireless keyboard with Linux | /home/wenlong