Release your arrow with confidence, knowing you're hold is just right for the shot. Nikon's advanced Incline/Decline (ID) technology allows you to range targets from a treestand or in steep terrain just like over flat ground, without time- consuming calculating or risky guessing. Just aim, push the button and plan your shot according to the displayed distance. It's waterproof, fogproof, multicoated optics offer 6X magnification and generous 18mm eye relief. With ID on, the unit measures in 1-yd. increments. With ID off, it measures in 1⁄2-yd. increments. 100-yd. range. Includes silent neoprene case and CR-2 lithium battery.