Sign of times: MLB gives OK to electronic pitch calling
Aaron Rodgers is wearing a playcalling wristband for the first time his career - The Washington Post
College baseball goes high-tech to send pitch calls to mound - Seattle Sports
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College Baseball Using Electronic Wristbands To Make Pitch Calls
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Major League Baseball approved use of electronic device for catchers to signal pitches in effort to eliminate sign stealing - ABC13 Houston
How Florida State rose to the top of college football again - ESPN
College World Series: College Baseball Showing Signs of a Revolution With Catcher Wristbands - WSJ
New college baseball wristband rule may thwart sign stealing