Casio G-Shock GMIX Bluetooth Smart World Time Analog-Digital GBA-400-4A Mens WatchCasio G Shock G'MIX Bluetooth Smart World Time Analog Digital GBA 400 4A GBA400 4A Men's Watch G SHOCK is the watch that gets popularity from a varied span of people with varying interests and from varying cultures. So this time, heres something for the music clan. The GMIX is Bluetooth smart and connects with a smartphone. You may control various phone features with the big, rotary switch; even equalizers while playing music. The watch produces a