Sony WH-1000XM4 Help Guide - Page 13

Help Guide Wireless Noise Canceling Stereo Headset WH-1000XM4 About the indicator You can check various statuses of the headset by the indicator. : 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) 13