Opti-Logic Micro Laser Archery/Ballistics Rangefinder, VAC Micro 2 is a part of the high quality and dependable Range Finders from Opti-Logic. All of the features you need for a price you want. Range Finders from Opti-Logic are well known for their quality and Opti-Logic Micro Laser Archery/Ballistics Rangefinder, VAC Micro 2 upholds that standard.