| 摘要 |
An automatic switching bi-directional vehicle-used speaker comprises a handset having a standard wireless communication protocol and a wireless earphone. The handset and wireless earphone transmitting speech signals bi-directionally. The wireless earphone is installed on a speaker device. A switch is used to switch the speech signal from the handset to the wireless earphone so that the signal is emitted through the speaker device. The microphone built in the speaker device receives speech signals of a user and then the speech signals are sent to the handset through the wireless earphone for emission. By above mentioned structure, the wireless earphone is placed in the speaker device. By the speaker device, speech signals are sent bi-directionally. Thereby, the user can communicate through the handset without wearing a wireless earphone.
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