This mini binocular is compact and easy to carry, suitable for watching concerts, games, field adventures, or outdoor activities. Notes: How far a binocular can see is closely related to the size of the target, weather conditions, and personal vision. Features: Lens are made with BAK4 prism, increasing light transmission for a brighter view and sharp images. Adjust by smooth "center-focus knob" and right eye lens, easy to focalize. The lens uses multi-layer FMC coating, and the color is clear without distortion when watching. Foldable and portable design perfect for taking around anywhere. Lightweight, won't add extra weight to your backpack. Suitable for watching opera, concerts, theater, shows, wildlife, football game, and more. Not only suitable for adult, but also suitable for kids. A nice gift for family and friends. How to use: 1. Adjust the center-focus knob until the left sight is clear. 2. Adjust the right eye lens until get one image. Specifications: Material: Binoculars Body Material: Aluminum Magnesium Alloy, ABS, PVC Prism material: BAK4 Unfolded Size(LxWxH): 105 x 90 x 40mm Colour: Black Magnification: 40x22 Package Contents: 1 x Binocular 1 x Storage Bag 1 x Lanyard 1 x Lens Cloth 1 x Manual Note: 1. Due to the lighting effects and shooting angles, the color of the item and that shown in the picture might have a nuance. 2. Due to manual measurement, there might be a tolerance in the product size.