The New Classic Logitech K400r Usb Wireless Touch Keyboard Keypad - Keyboards - AliExpress
Amazon.com: CM Ultra Thin Silicone Soft Keyboard Cover Skin Compatible with Logitech Wireless Touch Keyboard K400 Plus (Not for Old Version K400 & K400r) (Aqua Blue) : Electronics
Logitech K400r Wireless Touch Keyboard Built-in TouchPad With USB Receiver | eBay
The Keyboard battery cover for Logitech K400R K400PLUS - AliExpress
Logitech K400r Wireless Touch Keyboard with Touchpad & USB Dongle - Tested | eBay
Amazon.com: CM Ultra Thin Silicone Soft Keyboard Cover Skin Compatible with Logitech Wireless Touch Keyboard K400 Plus (Not for Old Version K400 & K400r) (Black) : Electronics