注：当在使用插式耳机听音乐时，系统会自动关掉外部扬声器的声音输出。

Note: When insert earphone in GPS navigator to listen music, the speaker output will be closed automatically.

youdao

注：当在使用插式耳机听音乐时，系统会自动关掉外部扬声器的声音输出。

Note: When insert earphone in GPS navigator to listen music, the speaker output will be closed automatically.

youdao