Monoj Kumar Sardar & Bros. brand shruti box. 13 reeds, 4C-5C, with 13 imitation ivory side mounted controls. The possible combinations or reeds of can produce hundreds of sounds. The female shruti has a higher pitched voice than the male.
To play, open one or more reeds by pushing the toggle to the side, unlatch the integral bellows and unlatch the reeded side. It is essential that at least one reed be open when you pump the bellows.
Each shruti box has a handle and metal feet for easy placement during play. It also comes with a soft zippered case for storage and transport. Color may vary from photo. Approximate measurements: 16" L x 12" W x 2.75" D.