The BX-4 Range HD Gen 2 TBRA(R)/W 12x50 fuses our DNAA(R) engine and ballistics software with the optical performance diehard hunters and shooters demand. Now you can spot and range targets without switching optics. It has a maximum range of 4,000 yards on reflective targets and 2,200 yards on trees. Its high-contrast red OLED display delivers crisp readouts in any light, while edge-to-edge HD clarity reduces eye strain for longer glassing sessions. Features Elite Optical System TBR-W Bow Mode Last Target Line of Sight (LOS) Mode Interchangeable Form-Fit Eyecups Archer&';s AdvantageA(R) Ergonomic Design Easy-grip Standoffs Tripod Ready Smooth Focusing Waterproof and Fogproof