10X42 Compact Binoculars for Adults

From the Amazon Listing

• Magnification: - Binoculars for hunting, 10x magnification & 42mm objective lenses, this high-definition Binocular, is made of selected glass to deliver much better resolution, provides edge-to-edge sharpness and clear light transmission. Item size 6.3 x 4.8 x 1.9 Inches, 1.0Lb
• Coating: - Hunting Binoculars for Adults, Kids, Quality FMC (Fully Multi Coated) Lens and Porro/BAK4 Prism; a multi-coated objective lens and eyepieces reflect light to ensure the viewing image, is ultra-bright and sharper. The Porro/BAK-4 prisms also ensure a crystal-clear view and much more guarantees for brighter, clearer, and crisper images.
• Durability: - Binoculars for Bird watching, Durable and Water-Resistant it has lightweight, portable design, shock and slip resistant, more comfortable to operate and a best friend for outdoor activities. Rubber armor provides a secure, non-slip grip, and durable external protection
• Adjustable: - Camo binoculars, is Easy to focus with or without glasses, eyecups can be twisted up and down for comfortable viewing. Center focus wheel uses to adjusts the focus of both binocular barrels at the same time. Also, the central focus wheel and right eyepiece ring lets you easily adjust different view distance while maintaining its high-definition vision.
• Application: Binoculars for Adults, The10x42 Binocular which is Perfect for adults, kids, hiking, camping, sport events, bird watching, concerts, plays, shows, travel, theater, opera, and many more. This binocular comes with own carrying bag, neck strap, cleaning clothe
• Exit Pupil: The exit pupil is calculated by dividing the objective lens diameter by the magnification (42/10 = 4.2mm in this case). A larger exit pupil can be more forgiving in terms of maintaining a bright image in low-light conditions