Charging Headphones
- Plug the small end of the USB cable into the micro-USB connector on the right earcup.
- Plug the other end into a USB wall charger or computer that is powered on.
Note:
• While charging, the battery indicator blinks amber. When the battery is fully charged, the battery indicator glows green.
• The headphones do not play while charging
Charging Time
Allow up to two hours to fully charge the headphones.
Note:
• When connected wirelessly, a full charge powers the headphones for up to 20 hours.
• When connected using the audio cable, a full charge powers the headphones for up to 40 hours.
Hear the Battery Level
Each time you power on the headphones, a voice prompt announces the battery level.
When the headphones are in use, you hear “Battery low, please charge now.”
Note: To visually check the battery, see the indicator located on the right earcup.
Status Indicators
The Bluetooth and battery indicators are located on the right earcup.
Bluetooth Indicator
| Indicator Activity | System State |
| Blinking Blue | Ready to connect |
| Blinking white | Connecting |
| Solid white (10 seconds) then powers of | Connected |
Battery Indicator
| Indicator Activity | System State |
| Solid green | Medium to full charge |
| Blinking amber | Charging |
| Solid amber | Low charge |
| Blinking red | Need to charge |
| Solid red | Charging error – contact Bose customer service |
Note: If connected to an Apple device, the device displays the headphone battery level
near the upper right corner of the screen and in the notification center.