BRAND NEW ORIGINAL PRODUCT. AS THIS IS A HANDMADE PRODUCT, SOME SCRATCHES MAY BE PRESENT.
A shruti box (sruti box or surpeti) is an instrument, originating from the Indian subcontinent, that traditionally works on a system of bellows. It is similar to a harmonium and is used to provide a drone in a practice session or concert of Indian classical music. It is used as an accompaniment to other instruments and notably the flute.
The shruti box is also used in classical singing. In classical singing, the shruti box is used to help tune the voice.