Is it legal for Vanderbilt baseball to use wristbands to call pitches?
College Baseball Using Electronic Wristbands To Make Pitch Calls
Never Miss A Sign Wristband Sign System for Baseball and Softball — Never Miss a Sign
wristbandsigns.com - example pitching and defense coach's sheet and player card
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Boys of Summer find winter home – Vanderbilt University Athletics – Official Athletics Website
Darren Baker, Jack Leiter make for son-splashed Futures Game - The San Diego Union-Tribune
Vanderbilt used an electronic wristband system for calling pitches
College Baseball Was On the Clock and Chose an Electronic Wristband
King of the Hill Pitching Trainer + Performance Pitch - MLB & D1's #1 Training Devices
Vanderbilt baseball unaffected by pace of play rules at tournament