NANSHI 8x21 Pocket Binoculars Folding HD Compatible with Bird Watching Concert Digital Binoculars  (Black)

1 RESTORE TRUE COLOR: Pocket binoculars uses BK7 plus with FMC coating high light transmission, the image is clear and transparent, restoring true colors. 2 ROOF PRISM STRUCTURE: Compact binoculars use the roof prism structure to maintain a compact body. The folding design is more adaptable. 3 EASY TO CARRY: 8x21 binoculars are more compact and lightweight after storage, equipped with storage bag shoulder strap, easy to carry, travel with no burden. 4 APPLICABLE SCENES: Small pocket binoculars are an excellent choice for theater, concerts and outdoor travel, providing a clear picture with no dead angle. 5 COMFORTABLE GRIP: Folding binoculars use soft surface finish with stylish appearance, comfortable grip. Children's exploration and discovery is more fun.Item Type: Pocket Binoculars Material: Rubber, Optical Glass Magnification: 8X Objective Lens Diameter: Approx. 21mm/0.8in Eyepiece Diameter: Approx. 16.5mm/0.6in Single Sided Eyepiece: 2 Groups Of 3 Pieces Single Sided Objective Lens: 1 Group Of 2 Pieces Prism: Roof BK7 Coating: FMC Optical System: Pure Optical System Field Of View: 6.5 Degree Line Field Of View: 126m At 1000 M, 378ft At 1000yds Pupil Distance: Approx. 9.5mm/0.4in Pupil Diameter: Approx. 2.6mm/0.1in Nearest Distance: Approx. 2m/6.6ft Pupil Distance: Approx. 36-74mm / 1.4-2.9in Product Weight: Approx. 230g/8.1oz Product Expansion Size: Approx. 115x36x97mm / 4.5x1.4x3.8in