brigenius 8x21 small binoculars, compact binoculars for adults kids bird watching, mini pocket lightweight binoculars for opera concert theater

The BRIGENIUS 8X21 Compact Lightweight binoculars Perfect for the whole family member, adults, kids, concerts, theater, opera, plays, shows, travel, hiking, camping, sport events, bird watching, as well as other outdoor recreations ADVANTAGES 1, Made with FMC multi-layer broadband green film, increasing light transmission for brighter and higher-contrast images; 2, EASY TO FOCUS I, Close your right eye and sight an object with your left eye, rotating the center focus wheel until the image is sharp and clear. II, Open your right eye and close your left eye.

Rotating the right eyepiece until the object sighted is sharp and clear. III, Both sides (eyes) are now in focus and you will need to use only the center focus wheel to focus on the other objects. 3, Lightweight as the phone 4, Lightweight as the phone 5, Pocket Size binoculars-Perfect for take around anywhere--opera, concerts, theater, shows, traveling, safari, birding, wildlife, walking, climbing, any other outdoor recreations.
Specifications Magnification: 8
X Objective diameter: 21mm
Eyepiece diameter: 13mm
Angle of field: 6 degree
View of field: 369 ft/1, 000Yds&131m/1000m
Exit pupil diameter: 5.2 mm
Eye relief: 16mm
Mini focus length: 2m
Prism: BK7
Coated: Multi FCM green optical coated
Focus system: Center focus
Package List: 1x Binoculars 1x Carrying bag 1x Cleaning Cloth 1x Straps