See also:

Airflow selection
Airflow selection ...

SCAN (only when connecting USB storage device)
Scan is operated in the same way a CD is played. For details, refer to “Scan (type A, B and C audio)”. NOTE When an iPod® is connected, you cannot select the SCAN mode. ...

Voice command system
Talk switch To turn on the voice command system, press the talk switch briefly. To turn off the voice command system, press the talk switch for more than 1.5 seconds. The commands available ...