The Bushnell Engage 10x42 is a roof binocular for outdoor activities such as bird watching and boat trips. Thanks to the large objective opening of 42 mm and exit pupil of 4.2, a lot of light falls into the binoculars. This way you also use it in the twilight. With the close focus of 3 meters you also focus on subjects that are at a short distance. You easily bring small details closer while you have a wide field of vision of 142 meters. This gives you a good overview of your environment. You get a clear and detailed image through the special ED coatings on the lenses and prisms. Thanks to the waterproof design you don't have to be afraid if the binoculars get wet.