What are those Magic Bands? How do they work?

A Magic Band is a band - pictured below - that links up to your Disney resort reservation or tickets. It is really designed to sync up with the My Disney Experience App. 

Once everything is linked - you can use your Magic Band for the Magical Express, Fast Pass+, dining reservations, room key, and charging privileges in the Parks. 

If you are staying off-property, you can purchase a Magical Band and link your tickets to it.