https://www.cngeir.com/products/head-mounted-night-vision-goggles/
CGYD binocular monocular head-mounted night vision device is a new product developed based on the latest opto-electronic technology, the instrument adopts a high-performance second-and-a-half/third-generation image intensifier, with excellent performance, small size, light weight, all-metal shell, adjustable eye spacing, clear imaging, simple operation, can be equipped with night vision image output, cost-effective, by replacing the objective lens (or connecting the extender) can change the magnification, etc.