The Etymotic ER3 Studio Edition is a highly accurate earphone with a natural response and great sound output, making it fit for any media player. The ER3SE-LE provides professional sound quality at a fair price. This edition includes a Lightning adapter for connection to iOS devices. The “Studio Reference” and “Studio Edition” models are tuned to reproduce the music exactly as it was recorded, without any added coloration. No added treble, no bass boost.
