[PREMIUM OPTICS] Achieve 99.8% light transmission with multi-layer broadband green coating on objective lenses & blue coating on eyepieces for crisp, clear images in various lighting conditions. [ERGONOMIC DESIGN] Enjoy balanced brightness & portability with a 16.5mm eyepiece diameter & 3.2mm exit pupil. Compact, foldable design reduces bulk without compromising optical performance. [VERSATILE OUTDOOR COMPANION] Perfect for birdwatching, wildlife observation, camping, hiking, concerts, & sporting events. Lightweight & folding, fits easily in pockets for outdoor enthusiasts of all ages. [ADJUSTABLE EYECUPS] Twist up eyecups allow for comfortable viewing experience with proper eye relief for both eyeglass wearers & non-eyeglass wearers. Enhance your viewing pleasure. [PRECISION ENGINEERING] 8x magnification, 25mm objective lenses, & BK7 prism material deliver a 120m/1000m linear field of view & 5.9 degree angular field for detailed mid-range observation.