| 摘要 |
PROBLEM TO BE SOLVED: To provide an electroacoustic conversion device capable of obtaining desired frequency characteristics easily, and to provide an electronic apparatus including the same.SOLUTION: An electroacoustic conversion device (earphone 100) according to one embodiment of the present invention includes a housing 41, a piezoelectric sounder 32, an electromagnetic sounder 31, and a passage 35. The piezoelectric sounder 32 includes a first diaphragm 321 having the periphery supported by the housing 41 directly or indirectly, and a piezoelectric element 322 arranged at least on one surface of the diaphragm 321. The piezoelectric sounder 32 has a second diaphragm, and sections the interior of the housing 41 into a first space S1 and a second space S2. The electromagnetic sounder 31 is arranged in the first space S1. The passage 35 is provided in the piezoelectric sounder 32 or therearound, and interconnects between the first and second spaces S1, S2.SELECTED DRAWING: Figure 1 |
