This quick video is to help you to Unify your keyboard and mouse on Ubuntu 14.04 LTS. You can connect any mouse or keyboard, but it has to be a Logitech Product. I believe this is a great technology that let us to connect multiple devices to the same receiver.
Here are the Command
sudo add-apt-repository ppa:daniel.pavel/solaar
sudo apt-get update
sudo apt-get install solaar
Here is the link to get access to the site where I got this information….