The Blast Motion softball Bat Swing Sensor Analyzer is a portable trainer designed for baseball and softball players. Made of plastic and powered by batteries, this white sensor features a sleek one-size-fit-all design. It is ideal for indoor/outdoor use and is specifically geared towards improving batting skills. The Blast Motion Bat Swing Sensor Analyzer is a unit by the brand Blast Motion, perfect for individuals looking to enhance their swing analysis and training.