A full size set of binos isn’t 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