User manual Logitech K400 Plus (English - 2 pages)
Logitech K400 Plus Touchpad Keyboard for TV connected PC
Logitech k400 - Wireless Touch Keyboard with Multi-Touch Touchpad
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