A full size set of binos isnt always the solution. Enter our compact BX-4 Pro Guide HD binoculars. We decreased the size and gave you some weight savings all while maintaining an elite level of performance. Built around our Twilight Max HD Light Management System the BX-4 Pro Guide HD binoculars boast un-paralleled brightness edge-to-edge clarity and advanced glare management elements; helping you see more details in less light. Their ergonomic open-bridge design is comfortable for extended glassing sessions and delivers key weight savings for those long backcountry adventures. - 100% Waterproof and Fogproof - BAK 4 Prisms - Central Focus Dial - Ergonomic Design - High Definition - Tripod Ready - Twilight Max HD Light Management System - Twist Up Eyecups - Interpupillary Distance Range: 58-74 - Weight (oz): 17.0 - Linear FOV (ft/1000 yd) - High: 315 - Length (in): 4.8 - Eye Relief (mm) - High: 16 - Angular FOV (degrees) - High: 6 - Exit Pupil (mm) - High: 3.2 - Close Focus Distance (ft): 6