About the indicator
You can check various statuses of the headset by the indicators.
: Turns on in blue/
: Turns on in red/
: Turns on in green/
: Turns on in yellow/-: Turns off
Indicator (blue/red) next to the 
button
Turning on
- (flashes two times)
Turning off
(lights for about two seconds)
BLUETOOTH status indication
-
Pairing mode
-
Not connected
- - - - - - (about one-second intervals) -
Connection process completed
(flashes quickly for about five seconds) -
Connected
- - - (about five-second interval) - - -
-
Incoming call
Other
-
Initialization completed
For details, refer to “Initializing the headset to restore factory settings.”
Indicator (red) next to the micro-USB port
Remaining battery charge indication
-
High
- - - -
-
Medium
- -
-
Low (needs to charge)
For details, refer to “Checking the remaining battery charge.”
Charging
- While charging
Turns off after the charging is complete. - Abnormal charging
- - - -
Indicator next to the NC/AMBIENT button
Noise canceling function (green)
- Noise canceling on
- Noise canceling off
- - - -- - - -
For details, refer to “What is noise canceling?.”
Ambient Sound Mode (yellow)
- On
- Focus on Voice
- - - -- - - - -
Quick Attention Mode
-----
Use the “Sony | Headphones Connect” app to switch to Focus on Voice.
For details, refer to “Listening to ambient sound during music playback (Ambient Sound Mode).”
Hint
- When the remaining battery charge becomes low, the indicator turns from blue to red, except for pairing mode.
