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 Touch Keyboard with Touchpad No receiver 754292140295 | eBay
Logitech K400 vs K400 Plus Media Keyboard - YouTube