A soundAMP R with iPod touch customer writes – the sound quality of soundAMP is better than his hearing aids; the Zoom feature works well in reducing background sound levels; own voice is too loud.
iPod touch users can reduce own voice volume by purchasing a wired mic that attaches to your shirt, away from your voice, to balance the volume. Several are available at the Apple Store.
Click on the Mics & Headsets link to the right to learn more.