This binoculars adopts BAK4 lens, which can offer high resolution view without shadow, and won’t distort color to reproduce a real view to you. The shell used quality rubber, comfortable to hold and anti-skid. It’s also waterproof, can be used in rainy days, and can withstand various harsh weather conditions. With built-in compass and range finder, can help you to identify direction and distance, convenient to use, very practical in outdoor use. The view of field is 132m/1000m, and supports you to see in very dim environment. Lightweight and portable, suitable for outdoor uses, concert, hiking, climbing, etc. With a built-in light in it, when you need to use compass in night, just one press on the button can turn the light on. The rubber cover on eyepiece is comfortable and suitable for most people, it can eliminate unnecessary light to enable you see clearly. Material: Rubber, Plastic, Glass. Color: Shown as picture. Exit Pupil: 6.8mm. View of Filed: 132m / 1000m. Power Supply: Built-in 2 x LR936 batteries. 20 x 8 x 17cm / 7.87 x 3.15 x 6.69in. This item can be used in dim environment, but not in total darkness. We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. Post a message again because sometimes our message system may block some emails. If you are satisfied with our service, pls. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.