There are two lights: an Earbud status light inside the case between the earbuds, and a Charging Case status light on the outside of the case.
Earbud status light (inner):
- Slowly blinks blue - Ready to connect
- Solid blue (5 seconds) - Connected
- Blinks white 2 times - Device list cleared
- Solid white (5 seconds) - Earbuds are fully charged
- Solid amber (5 seconds) - Earbuds are charging
- Blinks white 2 times - Reboot complete
- Blinks white 3 times, repeated - Updating earbud software
- Blinks amber and white - Error, contact Bose customer service
Charging Case status light (outer):
- Solid white - Case is fully charged (100%) and plugged in
- Solid white (5 seconds) - Case is charged (34% to 99%)
- Solid amber (5 seconds) - Case has low charge, less than one full earbud charge remaining (10% to 33%)
- Blinks amber 2 times - Case needs to charge (Less than 10%)
- Solid amber - Case is charging
- Blinks white 3 times, repeated - Updating case software
- Blinks amber and white - Error, contact Bose customer service