What is PitchCom and how is it being used in MLB? – NBC Sports Chicago
Houston Astros World Series: What is PitchCom, how does it work, and does it eliminate sign stealing? - ABC13 Houston
France's homer backs rookie Brash, Mariners beat Astros 7-2 - The San Diego Union-Tribune
Major League Baseball approved use of electronic device for catchers to signal pitches in effort to eliminate sign stealing - ABC13 Houston
How PitchCom changed the way MLB players communicate - Sports Illustrated
MLB: Teams allowed to use PitchCom to limit sign stealing
Mets give mixed reviews of new PitchCom device for pitch signals
Baseball investigates Houston Astros' alleged video theft of signs
France's homer backs rookie Brash, Mariners beat Astros 7-2
If The Astros Stole Signs, How Much Did It Help Them?
Houston Astros World Series: What is PitchCom, how does it work, and does it eliminate sign stealing? - ABC13 Houston