GPO's series of Rangeguide Binoculars are a must have for any hunter or long range shooter. These rangefinding binoculars are available in 8x and 10x configurations, as well as in multiple lens sizes. All models feature a lightweight magnesium alloy body coated in rubberized armor to protect the binoculars from minor drops and impacts. Like all products offered by German Precision Optics, the Rangeguide Binoculars offer excellent optical quality. This is thanks to GPObright lens technology – a vacuum applied coating that allows 99.7% of available light to pass through each optical surface, resulting in a light transmission that can exceed 92%.Features: True-range angle technologyScan mode that provides three readings per secondTemperature readings for long-range shootingOLED display with nine brightness settingsAuto display brightness featureDouble HD glass technologyGPObright lens coating technologyWaterproof and fog proofPASSIONdrop hydrophobic coatingHumidity and barometric pressure readings German Precision Optics GPO RangeGuide 8x40 HD 3500y OLED Black Rangefinding Binocular BX730