See also:

Locking or unlocking the phone book
Select “Phonebook Lock (Phbk Lock)” or “Phonebook Unlock (Phbk Unlock)” using a voice command or the “TUNE/SEL” knob. Input the PIN by either of the following methods and select “ ...

Details
You can do the detail settings. 1. Push the “SETUP” button. 2. Touch “Phone”. 3. Touch “Details”. 4. Do each setting according to the following procedures. 5. When you complete ea ...

Adjusting sound quality and volume balance
Press the “TUNE/SEL” knob to enter iPod menu mode. Pressing the “TUNE/SEL” knob changes sound modes.  - About iPod • Apple is not responsible for the operation of this device o ...