Zero-in on your prey with the Halo XRT6 Laser Rangefinder. This rangefinder can reach a maximum of 600 yards to reflective target. Designed with 6x magnification and precise to +/- 1 yard for an incredibly clear image. Scan mode allows for constant ranging and consistent, accurate results. Water-resistant construction. Uses one CR2 lithium ion battery (not included) . Comes with a convenient carrying case.