Professional HD 8x21 Binoculars with 8X magnification and a 21mm wide angle lens provide a 131m / 1000m field of view, bringing the world closer and clearer. High-quality optical components, including BAK-4 prisms and multi-coated lenses and eyepieces, deliver bright images and sharp, clear visuals. These compact binoculars perform well in low light conditions, though they are not designed for use in complete darkness. Featuring an adjustable and precise focus mechanism, these binoculars allow quick focusing at various distances with easily adjustable eye cups. The ergonomic eyepiece design helps reduce eye strain during extended use. Designed for durability, the binoculars are waterproof, fog-proof, and equipped with a rubber armored exterior for a secure, non-slip grip. They can withstand light moisture exposure but should not be used in heavy rain for prolonged periods or submerged in water. Ideal for outdoor and indoor activities, these binoculars are perfect for travel, hiking, hunting, climbing, bird watching, sporting events, concerts, and theater performances.