Gthunder Digital Night Vision Goggles Binoculars for Total Darkness Surveillance. Digital Night Vision Goggles. 7 Gear Adjustable IR. There are 7 unique IR modes on 850NM IR illuminator so that you can adjust the visibility of the subject to satisfy the needs of different levels of light. Even in fully dark condition, the CMOS image sensor can present the clear image up to 984ft. High Performance Night Vision. Press “IR UP” button to increase the brightness up to the result you would prefer, the max level is “7”; press “IR Down” to decrease the brightness. The higher the infrared light gear is adjusted, the farther and clearer the observation is. Powered by 6AA Battery(Not Included). Please install new 6 x 1.5V AA alkaline batteries into the night vision goggles before using(NOT INCLUDED). With IP56 water resistance feature, digital night vision can work normally in any weather conditions as it will not be affected by the water. You can connect the night vision goggles to PC through USB 2.0 cable to keep precious images/videos to avoid loss.