Bose QuietControl® 30 wireless noise-cancelling headphones Benutzeranleitung

2 8   -   E N G L I S H

  T R O U B L E S H O O T I N G

Poor sound quality

•  Use a different music source.
•  Pair a different mobile device.
•  Disconnect the second mobile device.
•  Move the device closer to the headphones, and away from any 

 interference or obstructions.

•  Clear any debris or wax buildup from the earbuds and headphone 

nozzles.

No noise  

cancelling

•  Make sure the power is switched on. The power indicator should glow 

solid green.

Noise cancelling 

won’t adjust

•  Turn the headphone’s power off and then on again.
•  Charge the headphones.

Headphones don’t 

charge

•  Open the hinged door on the inside right neckband and  securely 

 connect the small end of the USB cable to the USB  connector. Make 

sure the connector on the cable is correctly aligned with the connector 

on the headphones.

•  Secure both ends of the USB cable. 
•  If your headphones have been exposed to high or low temperatures, 

let the headphones return to room temperature and then try charging 

again.

StayHear®+ QC® tips 

falling off

Securely attach the tips to the earbuds (see “Changing the StayHear®+ 

Lost  

StayHear+ QC tip

Contact Bose® customer service for replacement tips.