scokc 8x42 compact binoculars for bird watching waterproof bak4 nitrogen filled telescope for travelling hunting birding t190627

features:.foggy anti-fog waterproofing, waterproofing in one meter deep water for 1 hour..bak-4 prisms for bright, clear, crisp viewing.multi-coated optics for superior light transmission.o-ring sealed and nitrogen purged for reliable, fog-performance.non-slip rubber armor absorbs shock while providing a firm grip.twist-up eyecups.large center-focus knob for easy adjustments.longer eye relief.roof prism system.specifications:.magnification: 8x.objective lens diameter: 42millimeter.prism typ