Volume Control; Playback Priority - Monster ADVENTURER MAX MT-MS22101 Quick Start Manual

Volume Control

Short press the Volume Button "+" or "-" to turn volume up or
down.
Music
Play/Pause: In the music playback mode, press the MFB to
play/pause music.
Track forward: In the music playback mode, press and hold the
Volume "+" Button for 2 seconds for next song.
Track backward: In the music playback mode, press and hold
the Volume "-" Button for 2 seconds for previous song.
SD Card Playback
When speaker is on and SD card is inserted, SD card is the
priority playback source. If you want to use Bluetooth function,
press the "①" Button to switch the source.
AUX IN Playback
When speaker is on and audio source is inserted via AUX IN,
AUX IN is the priority playback source. If you want to use
Bluetooth function, press the "①" Button to switch the source.
USB IN (Audio) Playback
When speaker is on and USB drive is inserted, USB IN (Audio)
is the priority playback source. If you want to use Bluetooth
function, press the "①" Button to switch the source.

Playback Priority

The Bluetooth mode is the default playback mode, when there
are multiple audio sources, the playback priority is as follows:
• SD Mode – first priority
• AUX IN Mode – second priority
• USB IN（AUDIO) Mode – third priority
• Bluetooth Mode – fourth priority