Leupold BX-4 Range HD Gen2 Binoculars Shadow Grey 12X50Leupold BX 4 Range HD Gen2 Binoculars Shadow Grey 12X50 12x magnification for detailed long range viewing; 50mm objective lenses for superior light gathering; Elite Optical System for enhanced clarity, color fidelity, and glare reduction; High contrast OLED display for visibility in any lighting condition; True Ballistic Range Wind (TBR W) technology for precise distance calculations; Archers Advantage software for accurate bow ballistic solutions;