What does the shruti box look like?

A shruti box is a compact musical instrument, typically rectangular in shape, often made of wood. It features a set of bellows on one side and a series of metal reeds inside, which produce sound when air is pushed through them. The front usually has a keyboard or buttons for controlling the pitch, and it may have decorative elements or carvings. Overall, it resembles a small harmonium but is designed specifically for producing sustained tones.