PI-Link Speed Radar is a portable speed radar device that connects with a smartphone to measure and record speed in real time. Designed primarily for baseball pitching training, it supports video recording, speed tracking, and training data management, helping players and coaches analyze performance more easily.

GyroSpeed is a baseball pitching trainer that uses a hand-held speed sensor and training towel to measure and display arm swing speed during pitching motion. It provides estimated ball speed, maximum acceleration, and pitch count, helping players train their form, speed, power, and throwing rhythm independently. GyroSpeed is a training device that estimates speed from arm acceleration and movement, rather than a radar device that directly measures actual ball speed.