HD high-performance magnification High-performance precision design, including all high-quality optical glass components (FMC Super BAK-4 green film prism), high-performance monoculars with 8x magnification, wide-angle lens with 42mm objective diameter and 360Ft / 1000Yds large field of view, giving you the best view for Have outdoor adventuresOptical lens filter coating & night vision Monocular HD high performance precision design, light reflection and minimal distortion, superior light transmittance and brightness. The Fmc multilayer coating reduces reflection and increases the amount of light entering. The image transmittance is up to 99.9%, the built-in low light night vision design helps you see things in low lightWaterproof, anti-fog and non-slip The built-in lens of this telescope has a dust cover and its optical components are also sealed to prevent dust / moisture / dust on the lens. With its waterproof performance, it is suitable for most weather conditions and environments (Note: Do not expose to heavy rain or immerse in water for long periods of time)Easy to Use You can use this compact 5.7 "x 1.9" x 1.5 "telescope with one hand. The adjustable eye mask can be easily and quickly rotated up and down whether you have one Wear glasses for the best viewing effect. The striped rubber housing increases friction and prevents the telescope from slipping in your hand. There is also a tripod connector on the underside of the monocular for stable viewing