Bose QuietComfort Earbuds II Noise-Canceling True Wireless In-Ear Headphones (Triple Black) - Manual (Page 36)

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EARBUD AND CHARGING CASE STATUS
CHARGING CASE STATUS LIGHTS
The charging case status lights are located on the front of the charging case. They
show the charge status and battery level of the case and the earbud update status.
Status lights
Battery status
Shows the charging case battery level.
LIGHT ACTIVITY CHARGING PERCENTAGE
0% – 20%
21% – 40%
41% – 60%
61% – 80%
81% – 100%
NOTE: When the case is charging, the last light blinks according to the current
battery level. When it is fully charged, all five charging case status lights glow
solid white.
Update and error status
Shows the update and error status.
LIGHT ACTIVITY SYSTEM STATE
Updating earbuds (see page 41)
NOTE: The charging case status lights blink
sequentially, starting with the first light.
Charging error - contact Bose customer service