| 摘要 |
<p>Apparatus (10) for transmitting sound between a user and a communications device such as a mobile telephone comprises a non electrical ear piece (13) connected via a tube (12) to an adaptor (22) which can be electrically connected to the mobile phone. A further tube (14) has a voice entry end (14b) and is coupled at the other end (14a) to the adaptor. Sound travels up tube (12) from the phone to the user and down tube (14) from the user to the phone.</p> |
