Monster MH11903, Quick Start Manual

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Volume Control
Volume down: quickly double press the MFB on the left
earphone during music streaming.
Volume up: quickly double press the MFB on the right
earphone during music streaming.
Calling
Answer/End Call: short press MFB button to answer/end the
phone call.
Reject Call: long press MFB button about 2 seconds to reject
phone call.
Music
Play/Pause: press MFB once to play/pause music.
Track forward: press and hold MFB on right earphone for
about 2 seconds.
Track backward: press and hold MFB on left earphone for
about 2 seconds.
Voice Control
After connecting to the phone, quickly double press the MFB
to activate the voice assistant.
Reset
Open the charging case cover, keep the left& right earphones
in the charging case, and double-click the MFB button on the
left& right earphones. At this time, the white indicator light on
the earphones will flash 3 times quickly, indicating that the
earphones have been restored to factory settings.