Dou­ble oca­ri­na tunes to Maj 3rd in­ter­val with over­tones for har­mon­ic heal­ing. The over­tones tune in­to the chack­ras help­ing to wash away cos­mic de­bris and im­prov­ing en­er­gy flow thru the use of har­mon­ic sound waves. (Play­ing it makes you fel bet­ter)