Microfirm Inc. is a consumer electronics company based in Signal Hill, California, USA. The company, under the brand PHOTOSONIX, designs, manufactures, tests, and ships light and sound devices from its facility. With a history dating back to 1981, Microfirm Inc. specializes in embedded microprocessor systems and offers innovative products for stress relief and relaxation. Their products are designed with input from professionals and therapists, focusing on quality manufacturing and customer service. Microfirm Inc. is committed to evolving their products based on knowledge gained from professionals, ensuring their devices offer respite from stress to users.