6i Isolator Earphone is designed specifically for use with the Apple iPod and other small portable players, providing greater sound output and enhanced bass....

6i Isolator Earphone are designed specifically for use with the Apple iPod and other small portable players, providing greater sound output and enhanced bass. Highly accurate music reproduction with greater sound output and enhanced bass and exceptional noise isolation...

The ER-6 Isolator Earphone reduce environmental sound levels 15~20 dB, allowing you to hear the full range of todays digital recordings without having to play them at unnaturally high and unsafe levels. Since you do not have to boost the volume to overcome external noise, ear overload distortion is minimized....

The ER4P MicroPro earphones are the next best thing to live music, with noise isolation far surpassing that of active noise-canceling earphones....

ER-4S Stereo earphone have the most accurate frequency response for reproducing CD and MP3 recordings. The sensitivity is comparable to home and professional earphones. ER-4S Stereo earphone are ideal for home stereo use and computer use. ER-4S Stereo earphone can be used with a Earphone amplifier when using low power portable devices....

Etymotic Research developed the world's first in-ear high fidelity, noise-isolating earphones. Now enjoy the freedom of wireless in-ear earphones and audio quality expected from Etymotic....

ER-4B Binaural Earphone is for the binaural recording enthusiast. The ER-4B is the reference earphone for use with material that has not been equalized for loudspeaker playback....