The college baseball season began this past weekend.

Vanderbilt, and a number of other schools, debuted a new wearable pitch-signaling device. Players wear the watch-like device on their glove hand to receive pitch selection information from the coaching staff.

The NCAA approved the devices last year. All nine players wear one. The goal of the technology is to enhance pace of play with the catcher not giving the signs.

"It is technically called an electronic display board in the NCAA's lingo," broadcaster Max Herz explained. "This was the first year it's been legal for a college pitcher to wear something like that … Scott Brown, the Vanderbilt pitching coach, is punching numbers into a controller he has, and all nine Vanderbilt players on the field have one. They all see the same thing. That tells the pitcher what type of pitch to throw, and where or how to throw it."