The NV 351 Gen 1 Night Vision Monocular from Minox is a reliable and compact companion for all outdoor activities. It is exceptionally small for a NVD. With dimensions of less than 7 by 3 1/2 inches, the Minox NV 351 is suitable for use anywhere night vision devices are called for. The available residual light, such as light frequencies from the brightness of stars or horizon radiation that are not perceived by the human eye, is amplified using a built-in infrared illuminator. The infrared-sensitive sensor picks up the infrared radiation and reproduces the image on the monitor in the viewfinder. It has a range of 229.7'. A carrying case is included.