How does the Qi device work with a shell on the phone?

The Qi device works with a shell on the phone by utilizing inductive charging technology. As long as the shell is designed to be compatible with Qi charging, it allows the transfer of energy between the charging pad and the phone. The charging pad generates an electromagnetic field, which induces a current in the receiver coil within the phone. However, if the shell is too thick or contains metal components, it may interfere with the charging process.