M1 Shruti Box An unrivalled instrument within its class, the M1 has become a familiar sight in musical venues, homes and Yoga studios around the world. It is loved by singers, sounders and meditators for its rich, harmonious tone and full bodied resonance. About the size of an average laptop computer, and weighing in at around 2.6 kg, (5.7lbs), the M1 strikes a good balance of size and function, offering portability and good sustain. It is easy and satisfying to play and has a smooth, quiet bellows action. M1 Shruti Box | Shruti Box Company