| abstract |
PROBLEM TO BE SOLVED: To provide a speaker combined with a receiver, which is mounted in various mobile communication terminals such as a mobile phone and integrates a speaker for generating a ring tone and a receiver for reproducing an audio signal. provide. SOLUTION: A speaker unit 110 that outputs a ringing sound of a predetermined volume from one side, a receiver unit 120 that outputs a sound of a predetermined volume from the other side, and the speaker unit 110 and the receiver unit 120 are symmetrical. A frame 26 accommodated in the A terminal 28 connected to the frame 26 and to which an electric signal is applied is integrated. |