famous brand high quality resonable price APRESYS PRO20000 laser rangefinder with the role of distance, small size, light weight, ... ,Repetition frequency:5 times / min8,Work:5 times / min;10,Beam divergence angle:1 mrad;11,As the magnification:7 times ... lithium polymer battery;14,Weight:2KG (without batteries); Apresys Pro20000 Laser rangefinder