10X50 Marine Binoculars The marine binoculars designed with 10X power magnification, 50mm large objective lens,24mm eye relief and 367ft/1000yds large field of view .The binoculars have impact resistance, high temperature resistance (+55C), low temperature resistance (-43C)High-quality BAK4 Porro Prism BinocularsThis HD binoculars watching comes with BAK-4 Prism and FMC film lens, which minimizes the loss of light due to reflection, thereby ensuring brighter and clearer high-contrast images. The low-light feature also ensures a clear view towards dusk but not in complete darkness, Perfect for Hunting or Concerts at night.Binoculars with Rangefinder CompassThe night vision binoculars are equipped with a built-in illumination compass for orientation and a built-in rangefinder, which can directly calculate the distance and size of the object on the left eyepiece. Even in low light conditions (not completely dark), the ruler and compass illuminated by light buttons can provide the maximum brightness of the image.IPX7 Waterproof Binoculars Waterproof binoculars is made of rubber-armored coating and leather, O-ring sealed optics with fog-proof coating prevents moisture, dust, and debris from getting inside the binoculars,ensures it waterproof,shock-resistance, durable and provides a firm grip.Simple to UseHunting binoculars have a wide, smooth focus knob that can easily focus. The rubber eyepiece can be adjusted up and down for more comfortable observation (with and without glasses). The diopter system can adjust the vision imbalance of both eyes and see a more perfect image.