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

Remaining battery charge indication

  • High

    - - - -

  • Medium

    - -

  • Low (needs to charge)

For details, refer to “Checking the remaining battery charge.”


  • While charging


  • Initialization completed

For details, refer to “Initializing the headset to restore factory settings.”

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)

  • Ambient Sound Mode
  • Quick Attention Mode

Use the “Sony | Headphones Connect” app to set up the Ambient Sound Mode.
For details, refer to “Listening to ambient sound during music playback (Ambient Sound Mode).”


  • When the remaining battery charge becomes low, the indicator turns from blue to red, except for pairing mode.