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
User manual Logitech K400 (English - 2 pages)
User manual Logitech K400 Plus (English - 2 pages)
LOGITECH K400 PLUS SETUP MANUAL Pdf Download | ManualsLib
How to Connect Logitech Wireless Keyboard - Driver Easy