Red/Green Reflex Style Dot sight. It has green or red dot sight, 4 different reticles to use, 5 power levels for brightness. Includes original box, battery, allen keys, cloth, and rubber lens protector. I mounted one on my shotgun but haven't had a chance to test it. I opened a few the packages to inspect them; the machining looks good and seems to be well made.
I have 15 of these still sealed in original packaging, willing to give discounts if you buy multiple. https://imgur.com/a/H9aLd