| 摘要 |
A communication device is disclosed comprising: an RF receiver circuit for receiving wireless signals from a designated transmitting device; a receiver audio circuit for converting the received wireless signals into audio waveforms; a speaker for converting the audio waveforms into sound information; and a receiver housing for enclosing the speaker, the receiver housing including a speaker mesa protruding from the receiver housing, the speaker mesa configured to fit into the ear of a user.
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