What device is used in "Men in Black" to erase memories?

You know the drill: a flash of light, a vague excuse, and boom, that alien attack never happened. The Neuralyzer is the sleek silver gadget that Agent K waves around like a magic wand whenever civilians get too nosy about alien encounters. The device works by emitting a bright flash that scrambles recent memories, allowing the agents to plant new, less extraterrestrial explanations for whatever weirdness just went down. Introduced in the original 1997 film, it quickly became one of sci-fi’s coolest fictional gadgets. The prop became so iconic that toy versions hit store shelves, though those probably didn't come with the same memory-wiping capabilities.