The Coolshot 50i is Nikon’s first laser rangefinder with an integrated magnet, allowing the user to attach it wherever its convenient. Other features of the Coolshot 50i include Nikon’s exclusive Incline/Decline Technology which displays the slope-adjusted distance in addition to the actual distance for uphill/downhill shots. In addition, this laser rangefinder is outfitted with Dual Locked On Quake Technology which displays a red circle in the center of the viewfinder and produces a vibration to let the user know that the distance to the target is reported instead of objects behind it. Features if the Coolshot 50i Laser Rangefinder: Incline/Decline Technology - displays the slope-adjusted distance in addition to the actual distance for uphill/downhill shotsIntegrated mounting magnetDual Locked On Quake Technology – displays a red circle in the center of viewfinder and produces a vibration to inform the user that the distance to the target is reported instead of objects behind it Nikon COOLSHOT 50i Laser Rangefinder 16760