CREATE TABLE table_41549 ("Headphone Model" TEXT, "Headphone Class" TEXT, "Sensitivity  ( dB ) " TEXT, "Impedance  ( Ohms ) " FLOAT, "Driver-matched dB" TEXT, "Construction" TEXT, "Earpads" TEXT, "Termination" TEXT, "Succeeded by" TEXT)

What earpads does the headphone with plastic contruction and was succeeded by igrado have?
SELECT "Earpads" FROM table_41549 WHERE "Construction" = 'plastic' AND "Succeeded by" = 'igrado'
SELECT "Earpads" FROM "table_41549" WHERE "Construction" = 'plastic' AND "Succeeded by" = 'igrado'