** Features : 1st in the world, portable, easy to use, attractive price,** Functions 1) Display expected putting distance(unit:10cm./4 in.) based on standard green speed 2) Adjustable actual distance per different green speed(fast or slow) 3) Display the value of wrists snap or length of forward stroke in digital value( wrist angle and forward movement of the stroke) 4) Audible putting tempo drill ; Adjustable putting stroke template sound as well as default value 5) Display the putting distance with automatic adjustment depending on the putting style- folded wrist or irregular stroke (forward and backward) 6) Display average values (distances) when total time or total no of stroke is set7) Sound notification when the putting distance is within the designated value ** Advantage1.Measures the putting speed by different golfers pose and style. 2.Analyze based on its pendulum movement. 3.Analyze the angle of wrists fold and gap between forward and backward stroke. 4.Display the values after angle analysis of wrists fold and length of putt stroke. 5.Golfers can practice by checking his(her) tempo, pose or style with digital display