| 摘要 |
This invention provides a wireless earphone able to control a ringing signal in response to an incoming call. This invention particularly provides a wireless earphone enabling the volume of the ringing signal relied on the status of the wireless earphone. The wireless earphone depends on an ear-hook action of the earphone or a sensor detecting the ear-hook action to determine the status of the earphone to control the volume of the ringing signal. As such, when the wireless earphone is not in use, i.e. being not worn, the volume of the ringing signal is enlarged to make the user perceives an incoming call. When the wireless earphone is in use, i.e. being worn, the volume of the ringing signal is in a range meeting a safety specification. The hearing of the user thus can be protected.
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