These are the 10x42mm binoculars that let you view faraway subjects on your smartphone and capture stunning pictures or video of everything you see. The included patented universal adapter clamps over your smartphone or phablet (leaving side buttons accessible) and aligns the binoculars’ eyepiece with your device’s camera lens, displaying the magnified image on its screen. The binoculars use a BAK-4 roof prism system that provides 10X magnification and a 306' field of view at 1,000 yards in a lightweight, compact, easy-grip body. A large focus wheel turns smoothly to allow precise adjustments and a close focus feature enables detailed viewing of subjects from as near as six feet away. The large 42mm objective lenses gather plenty of light even in dim conditions and are fully multi-coated, waterproof, and fogproof to deliver crisp, clear images. Adapter fits devices up to 3 3/4" wide. Includes soft carrying pouch, neck strap, lens covers, and hard foam case for adapter. Binoculars: 2" H x 5" W x 5 3/4" L; adapter: 4 1/4" H x 2 1/4" W x 4 1/2" D. (1 1/2 lbs.)