>While there is no official rule against electronic devices, then-MLB operations chief Sandy Alderson effectively laid down the law with a memo distributed in 2000:
>Please be reminded that the use of electronic equipment during a game is restricted. No club shall use electronic equipment, including walkie-talkies and cellular telephones, to communicate to or with any on-field personnel, including those, in the dugout, bullpen, field and-during the game-the clubhouse. Such equipment may not be used for the purpose of stealing signs or conveying information designed to give a club an advantage.
http://appleinsider.com/articles/15/08/19/mlb-okays-apple-wa...
>While there is no official rule against electronic devices, then-MLB operations chief Sandy Alderson effectively laid down the law with a memo distributed in 2000:
>Please be reminded that the use of electronic equipment during a game is restricted. No club shall use electronic equipment, including walkie-talkies and cellular telephones, to communicate to or with any on-field personnel, including those, in the dugout, bullpen, field and-during the game-the clubhouse. Such equipment may not be used for the purpose of stealing signs or conveying information designed to give a club an advantage.