Wireless plug-and-play keyboard with integrated touchpad for total control of your TV-connected PC from your couch. K400 is a quiet, easy-to-use keyboard with a built-in touchpad, plus all the hotkeys Windows and Android users know and love. Complete with media controls that make navigating your PC-controlled TV a breeze. Install is easy Plug in the USB Dongle into your computer Software should download and start automatically Follow the instructions. If the software doesn't start, please visit the link below and download the unifying software or take a pic of the QR code below with your phone camera https://support.logi.com/hc/en-us/articles/360025297913-Logitech-Unifying-Software