About this item 

• [ POWERFUL 10-30x50 ZOOM BINOCULARS ] : This binoculars has10-30x power magnification, 16mm eye lens diameter and 50mm large objective lens. High power easy focus binocular, Clearly visible386ft/1000yds as if you are there, Perfect for bird watching, Hunting, Rangefinder, Concert, Opera, Sports events etc. 
• [ BINOCULARS FOR HIGH POWERED ] : This binoculars has the objective lens use optical FMC multilayer broadband green film and the eyepiece-optical is made of blue FMC coating for light reflection and minimal distortion, better image brightness, contrast and quality, even in low light condition. The HK9 prism has a perfectly round exit pupil, you can see a bright, clear and razor-sharp view. 
• [ SLEEK AND SOLID, WATERPROOF, FOG-PROOF ] : This binoculars rubber finish for shock resistance and a firm, comfortable grip,is durable, designed to withstand all weather conditions, binoculars for adults kids high powered are filled with dry nitrogen gas and then sealed for rigorous outdoor use without internal fogging of the lenses. 
• [ ADJUSTABLE EYE CUPS FIT EYEGLASS WEARERS OR NOT ] The binocs can be pull down the rubber eyepieces and more fit the glasses wearer, getting close to lens and see easily. The long eye relief combined with large eyepiece give you a comfortable viewing while wearing sunglasses or eye glasses. For those who do not wear glasses, will gain more focused slight and feel more easeful through rising eye cups. The compact binoculars has 16mm large eyepieces, can see more clear image than other binoculars. 
• [ PERFECT GIFT, QUALITY ASSURANC ] : The perfect gifts for Christmas' Day, Birthdays, Father's Day, Children's Day and more.