PC-based entertainment electronics shouldn't require hard work. Control your computer connected to the TV comfortably from the couch. Experience extensive control options for your PC-based entertainment electronics – without cable clutter and complications with separate devices. With the comfortable and quiet keys and the large 3.5-inch touchpad, you can navigate effortlessly. Watch videos, browse the internet, chat with friends, and much more – all without annoying delays or outages. With the K400 Plus, you'll feel right at home. The layout is designed for relaxed multimedia interaction. Setting up the K400 Plus is a breeze. Just plug the tiny Unifying receiver into a USB port and enjoy. You can connect up to six devices to the keyboard's receiver. You'll almost forget that this keyboard runs on batteries. Use the K400 Plus right away or customize key and touchpad settings with the Logitech Options software.