Bose QUIETCOMFORT ULTRA Mode D'emploi page 13

The headphone controls are located on the back of the right earcup.
Microphone
Status light
USB-C®
port
H EA D P H O NE C O NTROLS
2.5 mm audio port Bluetooth/Power button
|
1 3 E N G
Microphone
Multi-function
button
Volume strip