Apparatus for transmitting, receiving, and processing digital data; Electronic data carriers in the form of wearables, namely, fobs, lanyards, clip-ons, and bracelets; Magnetically encoded charge card and key cards that may be worn by cruise passengers independently or embedded within wearable accessories, namely, clips, pendants, bands, and bracelets, which identifies a cruise ship, voyage date, shipboard safety assembly station and enables digital interaction with shipboard locations based ...