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4. Volume Down / Previous Track
5. Volume Up / Next Track
6. Microphone
7. Notification LED Light
8. Bass Boost Function
4. HOW TO USE
4.1. Quick Usage Guide
Desired Result
Turn On & Entering Pairing
Mode
Volume Up
Volume Down
Play Previous Track
Play Next Track
Turn Off
Play / Pause
Low Battery Warning
Charging
Answer Call
End Call
Transfer Voice Call
Reject Call
Activate Siri or other Voice
assistant
Required Action
Press the "MFB" button for 3 second while the device is off. The LED
will flash blue and red alternatively and you will hear one beep.
Short press the "+" button for volume up
Short press the "-" button for volume down
Long press the "-" button for previous music.
Long press the "+" button for next music.
Press the "MFB" for 3 seconds while the device is on. The LED will
turn off and you will hear a beep.
Press the "MFB" button to play music when the device is connected
and to pause when the device is already playing music.
The LED will flash continuously in red.
Plug the charger into the micro-USB port. The LED will light up in red
indicating that the headset is charging.
Short press the "MFB" button to answer an incoming call.
Short press the "MFB" button to end a call.
Press the "MFB" button for 1 second to transfer a voice call between
the mobile phone and the headphones during an ongoing call.
Press the "MFB" button for 2 seconds to reject a call.
Double press the "MFB" button to activate Siri or other Voice
assistant.
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