The ultimate marine binoculars:- Waterproof, floating & shockproof- With compass- Brighter images- Individual focus- Foldable eyecups- Easy-to-use- With neck strap, carrying case and built-in lenses’ coverTechnical Specifications:Magnification: 7x Lens Diameter: 50mm Prism Type: Porro BAK-4 Angle of Vision: 7,3o Exit Pupil: 7mm Eye Relief: 21,1mm Focus Type: Individual Field of View: 127m@1000m Weight: 914gr Dimensions: 17x9,5x20cm Battery: LR43 *Impa Code 370343, 370344, 370345