Sony SRS-X99 Help Manual page 282

Remove the speaker grille from the front of the speaker with the speaker grille detach tool (supplied).*
*
Keep the removed grille on a flat surface to prevent distortion.
Note
Do not touch the exposed part of the speaker (speaker units) after removing the speaker grille.
What you can do with the speaker and remote control during playback
You can adjust the volume using the VOL (volume) -/+ buttons of the speaker or the VOLUME +/- buttons of the remote
control.
You can also use the MUTING button,
control.
Hint
After SongPal is downloaded and installed to your smartphone/iPhone, you can use it as a remote control to operate
devices connected to the speaker.
SongPal has no function of play music via a BLUETOOTH connection. Play music with your BLUETOOTH device
such as smartphone, computer, etc.
Depending on the BLUETOOTH device, it may be necessary to adjust the volume or set the audio output setting on
the connected device.
Note
Stop playback on the BLUETOOTH device and turn down the volume of the device beforehand. Otherwise, you may
experience sudden loud sound output from the speaker when music is played back for the first time after a
BLUETOOTH connection has been made.
If the communication condition is poor, the BLUETOOTH device may react incorrectly to the operation on the speaker.
You can operate a BLUETOOTH device that supports AVRCP using the speaker or remote control. Available
functions may vary depending on the BLUETOOTH device. Refer to the operating instructions supplied with the
BLUETOOTH device.
Related Topic
Parts and controls (Remote control)
Using the BLUETOOTH/Network standby function
Selecting the BLUETOOTH audio streaming playback quality (Codec)
Terminating the BLUETOOTH connection (After use)
(Play/Pause) button, or / (Previous/Next) button of the remote
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