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User manual Logitech K400 Plus (English - 2 pages)
Logitech K400 Wireless Keyboard
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Use Your TV Like A PC With The Logitech K400 With Built-In Trackpad [$21 Only]
Logitech K400 Plus Touchpad Keyboard for TV connected PC
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File:Logitech K400 Plus.jpg - Wikimedia Commons
Logitech K400 Plus Touchpad Keyboard for TV connected PC
Amazon.com: Logitech K400 Plus Wireless Touch With Easy Media Control and Built-in Touchpad, HTPC Keyboard for PC-connected TV, Windows, Android, Chrome OS, Laptop, Tablet - Black : Electronics