Sony SRS-HG10 Help Manual page 140

Note
Volume can be adjusted with the speaker only. Adjusting volume with the Xperia may not be available.
Press the –/+ (volume) buttons to adjust the volume.
5
When you press the –/+ (volume) buttons, the
volume adjustment.
To enjoy a more dynamic sound
Pull the lever on the bottom of the speaker in the direction of the arrow shown in the illustration below to remove the
*
grille.
*
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.
Note
If you hear no sound, make sure that the cables are connected in the correct order.
For details, see "Connecting an Xperia compatible with High-Resolution Audio
(power) indicator flashes once or three times according to the
formats."
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