Specifications include, but are not limited to: A. Fourteen (14) L3 Insight AN/PVS 31A Binocular Night Vision Devices which must: A. be light weight (<2 lbs.) and hands free; B. have quick release helmet mount design; C. be durable and rugged for field use; D. come equipped the following battery packs: equal or greater than eight (8) hours on one (1) lithium AA battery and, equal or greater than twenty-four (24) hours on four (4) lithium AA batteries with a four (4) cell battery pack. E. have horizontal and vertical fields of view; F. be waterproof and immersible; G. have battery life detection in both the right and left monocular windows; H. switch to auto off when stored; I. contain an eyepiece diopter which is adjustable from +2.0 to -2.5; J. have an objective focus with a range to infinity; K. come equipped with dual-tube goggle with white phosphor technology; L. include rubber eye cups and lens covers; and, M. include remote power cable and operator’s manual. B. Include a minimum of a one (1) year warranty for both parts and labor; and, C. Include a soft carrying case.