SwingSmart Duo Golf Analyzer SWING IT - Attach the module to the shaft on any golf club; Take a swing and instantly, SwingSmart has analyzed your complete swing motion SEE IT - Get INSTANT feedback, Tempo, Attack Angle, Swing Speed and Face Angle and a 3-D view that shows your golf swing from any angle FIX IT - Save your "Best" swing and COMPARE it to other swings to see what's different and how to improve; Even e-mail your swing to an instructor Quickly and easily improve your game with instant feedback after every swing You get the important information you really need to make key improvements to your golf swing  with no distractions Compatible with iOS and Android devices