MLB approves use of electronic device to relay signs to pitchers in 2022
Rays tuned in to new electronic pitch-calling technology
College Baseball Was On the Clock and Chose an Electronic Wristband
Rays tuned in to new electronic pitch-calling technology
How 'Pitching Ninja' Rob Friedman accidentally became one of the most popular Jewish personalities in baseball - Jewish Community Voice
College baseball goes high-tech to send pitch calls to mound
Baseball must embrace technology in pitcher-catcher communication
How Well Did MLB's Experimental Minor League Rules Work? - The Ringer
Michael Lev: UA baseball season sadly comes to an end, and big changes appear to be imminent
Like 'playing a video game': Phillies seeing the value in new tech that transmits pitch signals
El Toro High graduate Jake Jackson passionate about faith, baseball – Orange County Register
College baseball's new tech experiment
College Baseball Takeaways: Virginia Tech, Oklahoma State Strike First Blows in Pivotal Series — College Baseball, MLB Draft, Prospects - Baseball America