product information
Product name: Monoculars
Mirror body material: aluminum alloy + rubber
Prism material: BAK4
Lens material: all-optical glass
Lens coating: multilayer coating
Magnification: 18 times
Eyepiece diameter: 21mm
Objective lens diameter: 42mm
Exit pupil diameter: 4mm
Exit pupil di: 1m
Close focus di: about 5 meters
Field of view range: 258ft@1000yds
Eye cup type: Rotating eye
Waterproof and anti-fog: life waterproof
Product weight: 450g
A full set of accessories: telescope, objective lens cover, eyepiece cover, lanyard, lens bag, lens cleaning cloth

Precautions:
Do not blow the lens with your mouth to avoid corrosion of the lens with saliva.
Do not use the telescope to look directly at any light source or sunlight.
Do not disassemble the device. Do not expose the device to high temperatures.
Do not drop, press or do other violent movements on the telescope.
Do not place the scopes under direct sunlight to avoid fire.
Do not wash under running water. It is recommended to avoid prolonged exposure to rain, fire and water.
When the telescope is not in use, please cover the eyepiece cover and objective lens cover, or store it in a standard backpack and box.
The remaining dirty spots on the lens should be gently wiped with a professional lens cloth or lens paper. So as not to scratch the mirror .