|An iPad can use a Bluetooth keyboard and logitech is one of several such keyboards. This is a link to the manual for the Logitech one.|
Essentially bluetooth switched on/enabled on the ipad, discoverable mode; and the keyboards powered up. Then after a wee while a code number will appear on the screen, which you type in using the ipad on-screen keyboard. A few seconds later the Logitech will be "paired" and ready for use.