iTunes and iPod include features designed to assist those with hearing disabilities.
Captioned Videos on iTunes
iTunes can play both captioned (open and closed caption) and subtitled videos. You can find captioned podcasts on iTunes U, such as those in The American Experience series produced by WGBH Boston. Because iTunes U and the iTunes Store continually add captioned content, you’ll want to visit often to check for new content.
Captioned Videos on iPod
iPod models that support video — including iPod classic, iPod nano (3rd, 4th and 5th generation) and iPod touch — can also display captions when present in the content. Captions display in a high-contrast white-on-black font that’s easy to read.
iPod Standard Audio Out Jack
Thanks to the industry-standard 3.5-mm stereo headphone jack, you can connect a wide variety of headphones and externally amplified audio speakers to all iPod models to suit your needs.
Password-Protected Volume Limit Controls
To help prevent hearing loss that may occur when listening to audio at high volume over long periods of time through earphones, all currently available iPod models include volume limit controls,allowing you to easily set the maximum listening volume. You can protect the maximum volume with a password, so it cannot be changed without permission.
When you're listening to music on iPod touch (4th generation) and iPod nano (6th generation), the Mono Audio feature plays both stereo left and right audio channels in each earbud.
Accessibility Add-ons for iPod touch
Several add-on products are available for iPod touch that can help those with hearing disabilities, including a hearing aid-compatible induction ear loop from TecEar, a wireless remote headset from Oticon and others.