A MagicBand is a wearable device used at Walt Disney World in Florida. It functions as a ticket for park entry, a room key for on-site hotels, and a payment method for food and merchandise. The band is designed to enhance the guest experience by providing convenience and seamless access to various services. The MagicBand is equipped with RFID technology, allowing it to communicate with sensors throughout the parks. Guests can customize their bands with different colors and designs, and they can link their My Disney Experience accounts to manage reservations and FastPass selections.