The K400 keyboard is great for those who have a Home Theatre PC (HTPC) and want a simple way of playing movies on screen or browsing the web without the added need of using a mouse.
The keyboard is lightweight and has a small footprint to keep portability in mind. With that said, the dedicated function keys you would normally see on a standard sized keyboard have be relegated to being shared with the multimedia keys.
The touchpad to the right is quite responsive and also includes a left and right mouse buttons. Vertical and horizontal scrolling is supported on the touch pad by putting two fingers on it and making a vertical or horizontal motion respectively.
Included in the box is a USB dongle and a range extender if you need to go further than 10 feet away (max distance supported 32 feet). The dongle contains Logitech’s own Unifying software which allows you to pair other Unifying devices to the one dongle via software which can be downloaded off of the Logitech’s website.
The keyboard uses two AA batteries which come pre-installed. The keyboard is available in both black and white.