Wireless Noise Canceling Stereo HeadsetWH-1000XM4

: Turns on in blue / : Turns on in red / -: Turns off

Indicator (blue/red) next to the (power) button

Turning on

- (flashes twice in blue)

In this case, when the remaining battery charge is 10% or lower (requires charging), the indicator lights successively as follows.

- - (repeatedly flashes slowly in red for about 15 seconds)

Turning off

(lights up in blue for about 2 seconds)

Displaying the remaining battery charge

• Remaining charge: More than 10%
  - (flashes twice in blue)
• Remaining charge: 10% or lower (requires charging)
  - - (repeatedly flashes slowly in red for about 15 seconds)

For details, see “Checking the remaining battery charge”.

When the remaining battery charge becomes low

- - (repeatedly flashes slowly in red for about 15 seconds)

Bluetooth function

• Device registration (pairing) mode
  - - - - (repeatedly flashes twice in blue)
• Not connected
  - - - - - - - - (repeatedly flashes in blue at about 1-second intervals)
• Connection process completed
  (repeatedly flashes quickly in blue for about 5 seconds)
• Connected
  - - - - - - - - - - - - (repeatedly flashes in blue at about 5-second intervals)
• Incoming call
  (repeatedly flashes quickly in blue)

The unconnected and connected status indications automatically turn off after a period of time has passed. They start flashing again for a period of time when some operation is performed. When the remaining battery charge becomes low, the indicator starts flashing in red.

Other

• Headphone cable connected (power is turned on)
  - - - - - - - - - - - - (repeatedly flashes in blue at about 5-second intervals)
  The indicator turns off automatically after a period of time has passed. When the remaining battery charge becomes low, the indicator starts flashing in red.
• Updating software
  - - - - (repeatedly flashes slowly in blue)
• Initialization completed
  (flashes 4 times in blue)
  For details, see “Initializing the headset to restore factory settings”.