New Night Vision Goggles - Haley Britzky - Ep 3 (Battery Life "ENVG-B several Hours not PVS-14's 10-20 minutes. More fun, Haley spilled the beans. She visited Elbit's Northern Virginia Office and got a run-through on ENVG-B. At 6:05 she says, "While that's being developed (ENVG-B) they are also working with Microsoft on IVAS". Thanks Haley...)