LOUDSPEAKER

PROBLEM TO BE SOLVED: To provide a compact, high-quality speaker that is used for each mobile unit communication equipment kind and inhibits distortion and abnormal sounds. SOLUTION: In the loudspeaker, a second sound hole 10a of a protector 10 that is fitted to a frame 2 of the loudspeaker is provided, while being biased to the side of a terminal section 4 of the frame, air entering from the side of the protector 10 is made nonuniform, so that it is balanced with nonuniform air entering from the side of the frame 2; the vibration of a diaphragm 1 is corrected to up/down movement with inhibited distortion, and a rolling phenomenon or the like for causing abnormal sounds is reduced, thus achieving the high-quality loudspeaker.