SV406P + SV202 must be a great gear for birders, no matter what degree are you.
This set of gear must provide you with a wonderful experience and definitely not let you down!!!

• Low dispersion ED glass,  bright and clear image
• Large eyepiece, 42mm large aperture objective lens,viewing effect is more comfortable, 7.5° wide field of view is wider
• Right visual refractive adjustment, adjust visual balance, easy to observe; Lift the eye caps to eliminate stray light and make the image purer. Easier operation for users who are wearing glasses

Extra-Low Dispersion (ED) objective lenses provide high resolution, high contrast images virtually free of optical defects like chromatic aberration (color fringing).

BaK-4 prisms increase contrast and resolution for sharper more detailed images. SMC Coating( super-multi coating)

10x50 binocular provides clear image and comfortable viewing experience.

Special for Staring.

Extra-Low Dispersion (ED) objective lenses provide high resolution, high contrast images virtually free of optical defects like chromatic aberration (color fringing). BaK-4 prisms increase contrast and resolution for sharper more detailed images. SMC Coating( super-multi coating)

1.The SV218 Compatible with binoculars, monoculars, spotting scope, microscopes or astronomical telescopes. Lens size 38.5 – 43mm. 
2.Connect multiple brands of smartphones to take pictures. iPhone, Samsung, etc. Ultra wide width range: 62 – 105 mm.
3.Made of high quality ABS and metal, eco-friendly and durable.