Plantronics Backbeat 903 - Music Controls and Indicators; Music Call Handling and Volume; Bass Boost and Audio Profiles

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Headphones Music Controls and Indicators
Action Indicator Light Tone
Answer a call while
listening to music
Tap the call control button.
Music will pause during call.
3 blue flashes
(repeating) while phone
is ringing. Blue flash
every 2 seconds while
on a call.
3 low tones (repeating) while
phone is ringing. Single low
tone when call connects or
when disconnects.
Reject a call while
listening to music
Press and hold the call
control button for 2 seconds.
None Single long low tone
Adjust the volume
of music
Tap the volume/tracking/mute
button forward or backward.
None Brief low tone (2 low tones
when volume limit is reached)
Boost the bass Press and hold the play/pause
button for 2 seconds when
music is playing.
None Ascending tones when
activating. Descending
tones when deactivating.
NOTE To wirelessly stream stereo music or audio from a device to your headphones, your Bluetooth
device must support the Bluetooth Advanced Audio Distribution Profile (A2DP) profile. To control music
playback with your headphones, your Bluetooth device must also support the Audio/Video Remote
Control Profile (AVRCP). The Bluetooth adaptor does not support the AVRCP profile, so you must use
the controls on your device to control music playback.