The Shruti Box, very much akin to a small harmonium, comes with 13 reeds, playing the 3rd octave C to the 4th octave C. The box comes with 14 imitation ivory side mounted controls. The combination of the 13 reeds can have the potential of making 100s of sounds. 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 slightly from photo. Approximate measurements: 16" L x 12" W x 2.75"