MLB Signs on to In-Game Usage of Wearable Pitch-Calling Devices
MLB gives OK to electronic pitch calling
PitchCom -- aimed at foiling MLB's would-be sign-stealers -- is (mostly) winning over the skeptics - ESPN
MLB Approves PitchCom to Limit Sign Stealing - The New York Times
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Astros use PitchCom to transmit signs for first time
pitch calling device glove|TikTok Search
MLB to allow electronic pitch-signaling devices in 2022 season to prevent sign-stealing
Met pitchers struggle to hear PitchCom over Citi Field noise
College Baseball Was On the Clock and Chose an Electronic Wristband
With MLB's 3D Version of Gameday, Watch Plays From Any Angle Like a Video Game
Baseball biometrics: wearable tech approved for Major League use, Biometrics
No more sign stealing? Electronic pitch calling coming to big league ballparks - Federal Baseball
Farewell to the fingers? Giants give signs-free technology a tryout
Oakland A's news: A's Opening Day positional strengths and weaknesses - Athletics Nation