This high-quality, ergonomically designed 42mm waterproof Helios telescope offers a magnification of 10x to 25x. The eye relief varies between 14mm and 9.5mm. It is fully multi-coated and incorporates high quality BaK-4 prisms. It is filled with nitrogen for water resistance and fog protection. The close-up distance is at least 50.8 cm. The rubber eyecup can be folded down for people who wear glasses. A bag and a shoulder strap are included. Scope of delivery: 10-25×42 telescope dust caps bag !Power supply and batteries are not included!