For performance that won?t weigh you down on long, backcountry hunts, you need the BX(R)-4 Pro Guide? HD binoculars. They deliver the brightness, edge-to-edge sharpness, and contrast guides demand, and we?ve taken extra steps to eliminate glare. You won?t find binoculars that work better in the worst light or reveal more in those crucial minutes at dawn and dusk.100% Waterproof and FogproofBAK 4 PrismsErgonomic DesignFully Multi-coated Lens SystemHigh DefinitionOpen Bridge Roof Prism DesignPhase CoatedTwilight Max HD Light Management SystemTwist Up EyecupsDEMO products may or may not include accessories.