part of a multiple sports series in wearable, multi-sensor technology. DuoTrac Golf is a multi-point, motion-tracking, portable sensor device and free, fun, easy-to-use mobile app that can be used to analyze and improve swing performance by tracking club face angle, weight shift, and transition. Their patented multi-sensor technology uses a four-point system that quadruples the accuracy of other sports swing analyzers and portable sensor technology. DuoTrac is custom designed to consider all levels of a golfer, whether an amateur, PGA Instructor, coach, or PGA Tour Player. Now, golfers can measure, track, and enhance their performance with every swing to step up their game.