One great invention that I really appreciate is headphones!  Being a school teacher, we depend on headphones to keep our classroom quiet for learning groups while some students are utilizing the student computers and also the listening center where students listen to a prerecorded story and follow along in a book.  If we didn’t have headphones then we wouldn’t be able to do as much with the students as we do.

Music lovers enjoy having headphones to use while listening to their favorite songs.   Monster headphones are even available that are supposed to “capture the sonic detail” for the listener.   And headphones are great for traveling so everybody in the vehicle doesn’t have to listen to the same music if they don’t want to.  I definitely appreciate headphones!