Features:Powerful handheld monocular let you see things 10 times closer and get clear images with 42mm objective lens.Multi-coated optics guarantees superior light transmission without color difference.Nonslip rubber armor provides absorbs shock while providing a firm grip.Waterproof construction built to last and withstand rugged weather.Large focus knob is easy to operate and quick to sharpen your view.Comfortable twist-up eyecup. Field of view: 258ft/1000yds.Compact and lightweight, good for boating, yachting, sports, bird watching, horse racing, hunting, concerts, etc.