One piece of gear that does double-duty that's the Leupold BX-4 Range HD TBR/W Gen 2 Rangefinder Binoculars. Built around Leupold's proven Elite Optical System a combination of extra-low dispersion glass and coatings they deliver the industry-leading light transmission and edge-to-edge clarity of Leupold's best binoculars, along with accurate ranging out to 4,000 yards with the press of a single button. Leupold's True Ballistic Range/Wind (TBR/W) technology provides the highest level of precision for rifle and bow, uphill or downhill, along with 25 selectable ballistics groups that account for your preferred cartridge. Archer's Advantage software makes it just as useful for bowhunting, using your arrow weight, velocity, and peep height. Distance readings are easily visible via the bright red OLED display, making sure you've got all the info. Leupold BX-4 Range HD TBR/W Gen 2 Rangefinder Binoculars are 100% waterproof and fogproof. Battery life is over 3,000 activations. 3 sets of interchangeable eyecups. Works for rifle and bowhunts Up to 4,000 yards for a reflective target, 1,400 yards for deer TBR/W technology and DNA laser engine Leupold Elite Optical System 25 selectable ballistics groups 100% waterproof and fogproof Battery life of over 3,000 activations