Apple iPad iOS 8.1 - Manual (Page 70)

Chapter 8 Music 70
Set the volume limit. Go to Settings > Music > Volume Limit.
Note: In some European Union (EU) countries, iPad may indicate when you’re setting the volume
above the EU recommended level for hearing safety. To increase the volume beyond this level,
you may need to briefly release the volume control. To limit the maximum headset volume to
this level, go to Settings > Music > Volume Limit, then turn on EU Volume Limit.
Prevent changes to the volume limit. Go to Settings > General > Restrictions > Volume Limit,
then tap Don’t Allow Changes.