Logitech Wireless Touch Keyboard K400 Plus review: Logitech's $40 K400 Plus spruces up the couch-potato experience - CNET
Logitech K400 Plus Wireless Touch TV Keyboard with Easy Media Control and Built-In Touchpad - Walmart.com
Logitech K400 Plus Wireless Touch TV Keyboard With Easy Media Control and Built-in Touchpad, HTPC Keyboard for PC-connected TV, Windows, Android, Chrome OS, Laptop, Tablet - Black - Newegg.com
Logitech Wireless Touch Keyboard K400 Plus With Built-in Touchpad For Internet-connected Tvs - Keyboards - AliExpress
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