Lokacin da aka ciyar da canjin halin yanzu cikin sauti, maganadisu ya zama electromagnet.Jagoran halin yanzu yana canzawa koyaushe, kuma electromagnet yana ci gaba da motsawa gaba da gaba saboda "motsin ƙarfi na waya mai ƙarfi a cikin filin maganadisu", yana motsa kwandon takarda don girgiza baya da gaba.Sitiriyo yana da sauti.
Abubuwan maganadisu akan ƙaho sun haɗa da magnetin ferrite da magnet NdFeB.Bisa ga aikace-aikacen, ana amfani da magneto na NdFeB a cikin kayan lantarki, kamar su hard disks, wayoyin hannu, belun kunne da kayan aikin baturi.Sautin yana da ƙarfi.