Sony SRS-HG1 Help Manual page 176

* After removing the speaker grille, do not touch the exposed part of the speaker (speaker units), and keep the removed grille on a flat surface to prevent
distortion.
Hint
Refer to the operating instructions of your Xperia for details.
For details on the use of the Android OS, refer to Help of Android OS.
4-589-712-11(2) Copyright 2016 Sony Corporation
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