| 摘要 |
The acoustic connection is achieved either : directly, with a microphone (6) shielded against electromagnetic radiation for receiving the voice coming via the earphone (3) of the mobile telephony appliance (1) and a speaker (7) for delivery the voice of the user (13) to the microphone (7) of the mobile telephone (1), or : indirectly via voice wave guiding tubes (4, 5) which interfere between the mobile telephony appliance (1) and the microphone (6) and speaker (7). |
