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
Logitech - K400 Plus Wireless Keyboard - Black. USB Receiver Not Included. 754292140295 | eBay
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Logitech Wireless Touch Keyboard K400 User Manual
Getting started with Logitech® Wireless Touch Keyboard K400