Bose QuietComfort Ultra Wireless Noise Canceling Over-Ear Headphones (White Smoke) - Manual (Page 35)

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BATTERY
CHARGE THE HEADPHONES
1. Connect the small end of the USB cable to the USB-C port on the left earcup.
2. Connect the other end to a USB-A power source such as a computer or
wall charger.
The headphones begin charging, and the status light glows solid amber. When the
headphones are fully charged, the status light glows solid white.