20x25 Compact Binoculars BAK4 Prism

Dimensions: 4.7 x 1.8 x 1.6 inches (folded); weight: 0.5 lbs (227 g); objective lens diameter: 25 mm; eyepiece diameter: 16 mm; magnification: 20x; field of view: 399 ft at 1000 yd; optical construction: BAK4 prisms with multi-coated aspherical lenses; light transmittance: 99.68%; body material: shockproof soft silicone with non-slip rubber armour; IPX4-rated daily waterproof and fog-proof sealing. These binoculars deliver high-contrast, colour-accurate images with minimal distortion and no chromatic aberration, thanks to precision multi-coated aspherical optics and high-transmittance BAK4 prisms. The 20x magnification reveals fine detail at distance while maintaining a usable field of view, and the large 16 mm eyepieces reduce eye strain during extended observation — especially beneficial for children aged 8–12 and adults alike. Ideal for daylight birdwatching, hiking, sports events, travel sightseeing and casual outdoor exploration. Their foldable, ultra-compact design fits easily into pockets or small backpacks. The ergonomic rubber-armoured body ensures secure handling in damp or cool conditions, and the waterproof/fog-proof construction supports reliable performance in variable UK weather.