Using only one button, youâ??ll ascertain the exact distance to your target in a split second with Bushnellâ??s Bone Collector Rangefinder. The rangefinder measures to 600 yds. with +/-1 yard accuracy. 4X magnification brings your target up close and personal. In-view LCD display presents exceptional images. Vertical configuration for comfortable one-hand operation. Powered by one 9-volt battery (not included). Includes carry case.