ステレオシステム Sony SRS-XB31のPDF マニュアルをオンラインで閲覧またはダウンロードできます。Sony SRS-XB31 2 ページ。 Personal audio system
Sony SRS-XB31 にも: リファレンス・マニュアル (2 ページ), ヘルプマニュアル (4 ページ), リファレンス・マニュアル (2 ページ)

Sony SRS-XB31 マニュアル
English
Party Booster is a function that outputs sound effects and shines lights
when you tap the system along with music.
To turn the Party Booster function on/off, press and hold the - (volume)
and + (volume) buttons on the system at the same time for more than 3
seconds until the  (power) indicator blinks.
When carrying the system, be sure to turn off
the power so that the sound effect does not
output unintentionally.
For details, refer to the Help Guide.
SRS-XB41: http://rd1.sony.net/help/speaker/srs-xb41/h_zz/
SRS-XB31: http://rd1.sony.net/help/speaker/srs-xb31/h_zz/
SRS-XB21: http://rd1.sony.net/help/speaker/srs-xb21/h_zz/
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