Mets give mixed reviews of new PitchCom device for pitch signals
College Baseball Using Electronic Wristbands To Make Pitch Calls
Wristbands worn by catcher, pitcher could eliminate cheating in
MLB CUSTOMIZABLE String Bracelet Set Braided - Sweden
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MLB umpires wear wristbands to protest 'abusive player behavior
Push-button pitching: MLB to let pitchers call own signals – KVEO-TV
OPINION: Technology in college baseball is stunting players
New device could make stealing catchers' signals a relic in baseball
Push-button pitching: MLB to let pitchers call own signals – NBC