Dear Customer, Galaxy M21 has 3.5 mm headphone jack. Hope this is of help. Regards, Samsung India Samsung Galaxy m21 2021 have normal single speaker at the bottom area which is loud and clear. Quality of speaker is very good. Sound is very loud as per Trend####[['normal single speaker', 'Audio/Sound#Volume and Speaker', 'positive'], ['Quality of speaker', 'Audio/Sound#Volume and Speaker', 'positive'], ['Sound', 'Audio/Sound#Volume and Speaker', 'positive']]