Casio G-Shock GBD-100BAR-4ER FC Barcelona Matchday Collaboration Model Men’s WatchModel Specifications: GBD 100BAR 4ER Bluetooth Smart The watch is equipped with energy saving Bluetooth technology, which offers power saving data transfer at the push of a button. The watch can connect to a smartphone wirelessly via Bluetooth, enabling access to a wide range of useful functions. Smartphone time Local time will automatically be adjusted whenever the watch is connected with a smartphone. Auto LED light A light emitting diode (LED) is