Was reading an article on CNN about a high tech cruise ship and came across this sentence, "Other high-tech features include the use of electronic wristbands that serve as room keys and allow passengers to navigate the ship and make onboard purchases." Sound familiar?
http://www.cnn.com/2014/11/06/travel/cruise-ship-quantum-of-the-seas/index.html?hpt=hp_c2
http://www.cnn.com/2014/11/06/travel/cruise-ship-quantum-of-the-seas/index.html?hpt=hp_c2