Night Owl Optics NexGen 50mm Binoculars: * 2 electronic intensifier tubes inside stringer system offer precision and control * Powerful built-in illuminator provides clear and bright viewing in complete darkness * High-quality, all objective and ocular lenses * Rubberized finish * Requires Cr-123 3V Lithium Battery * 5x magnification * Field of view: 200 ft at 53 ft