How To Set The iPod or Nano
Place your mouse over the image to see (and then click) the play button.
"To set a maximum volume limit for the iPod or iPod Nano:
1. Select Settings.
2. Select Volume Limit.
3. If you set a combination, enter it by using the Click Wheel to select the numbers and pressing the Center button to confirm them.
4. Use the Click Wheel to select the maximum volume limit, the triangle under the volume bar indicates the new volume level.
5. Press the Center button to enter the change. 
You can now see a Volume Limit Lock icon next to the volume bar.
"If you choose Set Combination, enter a combination:
1. Use the Click Wheel to select a number for the first position.
2. Press the Center button to confirm your choice and move to the next position.
3. Use the same method to set the remaining numbers of the combination. You can use the Next/Fast-forward button to move to the next position and the Previous/Rewind button to move to the previous position.
4. Press the Center button in the final position to confirm the entire combination and return to the previous screen."
(Apple, 2008)
