Unlimited viewing mirror, mobile phone camera/low-light night vision/mini portable, small body but big energy. Exquisite appearance, MINI portability, high power design, BAK4 prism, FMC green film. Waterproof and rainproof for life, easy to travel outdoors. Right eyepiece adjustment: The diopter adjustment will make it easy for users with different left and right eyesight to use. Rotate left and right to adjust until both eyes are clear. Manual focus: Twist the middle ball to adjust the focus. When observing objects at different distances, you only need to easily rotate the roller until you see a clear object. FMC coating: multi-layer green coating, bright and transparent color, high degree of reduction, with matting lines on the edge, which can effectively relieve eye fatigue. High-definition blue film filter: the optical glass is coated with multi-layer composite blue film, which has good light transmission and clear imaging. Equipped with a dustproof bag, it is portable and lightweight, dust-free and splash-proof, and effectively protects the glasses. product information Magnification: 10 times Eyepiece: 15mm Coating: FMC coating Size: 100x90x30mm Model: 40x22 Prism: BAK4 Objective lens: 22mm Exit pupil: 20mm Weight: 170g