New Wireless Audio Lets MLB Umpires Make All the Calls Very Loud and Clear

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Justin McClellan on LinkedIn: New Wireless Audio Lets MLB Umpires Make All the Calls Very Loud and Clear

Baseball is getting closer to the best version of itself, and not a moment too soon - The Boston Globe

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Interview: Jamie Moyer, Author of 'Just Tell Me I Can't' : NPR

Midland - LXT500VP3, 22 Channel FRS Walkie Talkies with Channel Scan - Extended Range Two Way Radios, Silent Operation, Batteries Included (Pair Pack) (Black) : Electronics

MLB umpires to announce replay review decisions to fans - ESPN

MLB Umpires to Explain Calls via Microphone in 2020

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Umpires to announce replay reviews to fans