ER-6 Isolator Earphones are in-the-ear, high-fidelity transducers developed to combine flat frequency response with isolation from external noise. When properly sealed in the ears, these earphones provide 15-20 dB of external noise exclusion. This allows the listener to hear the full dynamic range of recordings at lower reproduction levels.<br><br>- Perfect for travel and commuting--plug into any audio source (airplanes, laptop computers, CD, DVD, MP3).<br>- Flanged tips seal comfortably in ears.<br>- Smooth, extended high-frequency response.<br>- Excellent bass.<br>- Great isolation in a small package.