You can go to Settings>Music>Volume Limit and set the level at the best setting for your son. To stop him from changing this limit, go to Settings>General>Restrictions>Volume Limit and select Don't Allow Changes. You have to set a restrictions password to do this, make sure your son does not have the restrictions password. I'm not sure if this will work with an iPad 1, but check it out and see.Hello. I'm new and clueless about all Apple products. My non-verbal autistic son has an I-PAD (first version) which he blasts with or without headphones. Is there any way to "lock" the volume to a certain level? I fear he'll damage his hearing. Thanks!!!