All Night Vision Depot (NVD) manufactured PVS-14s now use a brand new battery housing that will cut off power to the PVS-14 when the unit is flipped up in a head or helmet mount. It will turn back on once the unit is flipped back down into viewing position. The user does not need to fumble with the on / off switch to reset the unit in order to turn it back on when flipping the unit down again. This new addition makes the NVD-PVS-14 one of the most versatile and safest to use night vision systems.