10x42 Binoculars for Adults - Professional HD Roof BAK4 Prism Lens Binoculars for Bird Watching, Hunting, Travel, Sports, Cruise, with Carrying Bag (1.1Lbs)

Here's how to focus:
1: Close your right eye-focus with the left and rotate the central knob until the image is clear.
2: Close your left eye-rotate the right eyepiece knob until the image is sharp and clear.
3: Bend the binoculars until you can get a single circular view.

Specifications:
Objective lens diameter: 42mm
Eyepiece diameter: 18mm
Near focal distance:5m
Exit pupil distance: 10mm
Objective lens coating: FMC broadband
Focus system: Center & Right eye
Angle of field: 5.5 degrees
Viewof field: 305ft/1000yds
Weight of binoculars:1.09lb/498g
Waterproof grade: IP55 Life waterproof

Package:
1 x Binoculars
1 x Cleaning Cloth
1 x Carrying Bag (with strap)
1 x User Manual
1 x Neck strap
1 x Eyecup
1 x Objective Lens Covers