August 16, 2012 by Volamoot at Mashable!
A patent filed in April 2012 and approved on Thursday details what Apple is calling “vented in-the-ear headphones,” which aims to cut back on the echoes you might hear of your voice while making phone calls.
“The invention aims to improve the sound quality by venting or leakage,” Apple said.
Although earbuds can be used for various types of activity — such as exercising vigorously or talking on a telephone call — Apple said the sound quality is lost due to the design.
“This increased level of physical acti…
posted by Mashable from http://mashable.com/2012/08/16/apple-vented-earbuds/