Bose QuietComfort Earbuds II Noise-Canceling True Wireless In-Ear Headphones (Limited-Edition Eclipse Gray) - Manual (Page 37)

EARBUD AND CHARGING CASE STATUS
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EARBUD AND CHARGING CASE STATUS
CHARGING CASE STATUS LIGHT
The charging case status light is located on the front of the charging case.
Charging case status light
Battery, update, and error status
Shows the charging case battery, update, and error status.
LIGHT ACTIVITY SYSTEM STATE
Solid white Fully charged (100%) and plugged in
Solid white (5 seconds) Charged (34% – 99%)
Solid amber (5 seconds) Low charge (10% – 33%)
Blinks amber 2 times Need to charge (less than 10%)
Solid amber Charging
Blinks white 3 times (repeated) Updating software
Blinks amber and white Error – contact Bose customer service