Etymotic Research ER6i Isolator Earphones

6i isolator earphones are designed specifically for use with the Apple iPod and other small portable players, offering 8 DB higher overall sensitivity and slightly more Bass than the ER-6 isolator earphones. Use with MP3, CD, DVD players and Personal Computers Lightweight, compact, fits in your pocket; no Battery required Highest noise isolation (15 to 35dB) Includes 5 ft. cord with 3.5 mm Stereo plug / 1 pair eartips / 1 pair foam eartips / 2 replacement filters / Filter changing tool / Shirt clip / Zippered pouch