This Pitch Velocity and Accuracy Umpire pitch-training device from Hammacher Schlemmer measures pitch velocity, calls balls and strikes, and simulates at bats.Β The built-in sonic radar measures speed from 20-99 mph from 45β² or 60β² 6β³ away (the Little League and Major League Baseball pitching distances).Β It can also be used with fast-pitch softball at 40β² or 43β².Β It has a durable 16-gauge steel with stainless steel hardware, and it operates up to 100 hours on 4 D-cell batteries.Β It even folds up so you can take it to the practice fields.Β Itβs $399.95 from Hammacher Schlemmer.