· Waterproof and fall proof, durable, longer lifetime
· Easy to operate, easy to use
· The ultimate experience of second speed measurement
· Exquisite anti slip texture design, comfortable feel
second speed measurement
Note: the battery symbol will only be displayed when the battery is low
Distance：AB spacing = AD point spacing. If the actual distance is used, the hitting parabola is 1. Because the slope is positive at this time, you can only fly to point C. to reach point B, you need to hit the ball according to parabola 2. The flying distance at this time should be the distance between AE points
Distance: AB distance = AD point distance. If the actual distance is used, the hitting parabola is 2. Because the slope is negative at this time, you can only fly to point C. to reach point B, you need to hit the ball by parabola 1. The flying distance should be the distance between AE points.