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3. INPUT buttons
Switches the input source.
To play the TV sound: Turns the TV on and press the   button.
To play music from a USB flash drive: Connect the USB flash drive and 
press the 
 button.
To play music from a Bluetooth device: Press the   button. Refer to 
page 16 for connecting.
4.  VOLUME +/– buttons
Allows to adjust the volume by 1 step in the 0 to 30 range.
5.  SUBWOOFER +/– button
Allows to adjust the subwoofer level by 1 step in the –10 to +10 range while 
listening to the sound. The default setting is 0.
6.  SOUND MODE button
Switches the sound mode of input sound as desired. The mode switches in the 
order of MUSIC o NEWS o MOVIE o MUSIC o each time the button is pressed. 
You can select the mode for each input source (TV, USB and Bluetooth).
MUSIC Mode: Gives concert hall-like sound effect. 
NEWS Mode: Allows to comfortably listen news programs.
MOVIE Mode: Creates powerful 3D sound effect suitable for enjoying movies.
7.  USB operation buttons
Allows operation when the input source is USB.
 button: Pressing once returns the audio to the beginning of the file being 
played. Pressing twice continuously returns it to the previous file. Then the 
audio will skip back to the previous file each time the button is pressed.
 button: Pressing during stop starts playback. Pressing during playback 
temporarily stops the audio.
 button: The audio skips to the next file each time the button is pressed.