I have used many rangefinder before but this is the best one so far to experience a lot of inbuilt features within this little device.Works great with locking feature once you have your target set to measure the distance easily.It also has slope function with flag pole locking mechanism while aiming for a slope flag pole.It has 7x zoom which works great to quickly go from 1x to 7x with one button click.It cute rangefinder can fit in your pocket and it also has a lanyard for wearing on your wrist for quick access.This rangefinder is very reliable and the units inside the lens are easily readable.Works to measure the accuracy of the Golf poles for a clean and easy hit.Great buy!