headphones limit the decibels

Innovative last week
N.H. mom's headphones limit the decibels

from http://www.boston.com/business/personaltech/articles/2007/05/07/chewbacca_as_a_usb_drive/

If your high school graduate is bucking for an iPod, but you want to preserve his hearing through the summer, try swapping in a pair of iHearSafe Earbuds (about $25 at ingemicorp.com) for those that come standard with the music player. Developed by Christine Ingemi, a mother of four iPod listeners in Amherst, N.H., the iHearSafe Earbuds automatically limit the sound from media player devices such as the iPod to 80 decibels. Ingemi said she is working on "sport style" headphones, and earbuds with ear clips, which will be available this summer. And she hopes to have wireless iHearSafe headphones available in time for Christmas.