Logitech Ultimate Ears is an American custom in-ear monitor (IEM), speak and earphone manufacturer based in Irvine and Newark, California, United States.
The company was founded in 1995 by Jerry and Mindy Harvey. Ultimate Ears has created a new market for custom IEMs, these IEMs are now used by most of the world's best artists on tour.
In 2008 Ultimate Ears was acquired by Logitech, since then it has operated as a subsidiary under the name Logitech UE.
For more information about Ultimate Ears and its products, visit the Ultimate Ears website