Shruti box professional quality very  long stamina ful air tight, get continuous voice with less pump, and very good deep drone sound, completely hand made with lots of care,13 notes chromatic notes Lower C to higher c and all notes perfectly work and nicely tuned. tuned 432 Hz 
we use well seasoned wood, it will be play very well of all weather without any problem.
We are making these quality shruti box for professional singer and yoga teachers, also we work for government music school and many others big music school in India.

Including with padded gig bag!

note; We are the maker of professional Indian classical instruments we make our all instruments with deeply carefully for professionally play, we use best quality material, no ant effect from the different weather.