I use this rangefinder during Whitetail archery season, and for ranging targets when sighting in rifles. The battery life is fairly short, but that is with the included batteries. A better quality aftermarket battery will probably last much longer. I like that the last range is displayed when you hit the range button, and pressing it a second time will give the new range. This rangefinder is effective out to 500 yds, and will more than suffice for the average hunter. I am happy with this product, and as long as it's not abused I think it should last a long time.