All wireless items need a connection to the main hub in order to operate on the computer or whatever electronic device you’re using. Logitech has created a unifying wireless receiver that puts all those space consuming technologies into one single USB port.
The revolutionary USB unifying wireless receiver has taken the vitally important mouse and keyboard combo and thrown them into one connection. That means a vitally important extra USB slot for more other appliances.
Who knows what else is going to be put into one unifying wireless receiver in the near future. Webcam? Printer? Pacemaker?