Using only one button, you’ll ascertain the exact distance to your target in a split second with Bushnell’s Bone Collector Rangefinder. The rangefinder measures to 400 yds with with +/-1 yard accuracy. Most accurate up to 200 yards. 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.