- OFFERS ENHANCED AND EXTENDED BASS - The Etymotic Research ER4XR provides an extended reference in the lower ends compared to the ER4SR. It does not get too muddy or compromise the mids and highs' accuracy.
- STILL DELIVERS ACCURATE FREQUENCY RESPONSE - Despite the added warmth in the bass, the ER4XR in-ear monitors provide over 92% response accuracy from 20Hz~16kHz range.
- ISOLATES UP TO 98% OF AMBIENT NOISE - The included assortment of eartips provide a proper seal against noise. The balanced armature drivers deliver up to 42dB of external acoustic isolation.
- OFFERS UPGRADED FEATURES - The new ER4XR earphones have metal bodies with anodized finish. Etymotic Research increased the sensitivity on the new model for a more dynamic sound.
- INCLUDES - Etymotic Research ER4XR Extended Reference Noise-Isolating In Ear Monitors. Filter Removal Tool and Replacement Ear Filters. Detachable 5-Foot Cable with 3.5mm Gold-Plated Stereo Plug. 1/4" Stereo Phone Adapter. Eartips in Assorted Sizes. Shirt Clip. Storage Case. FiiO E10K USB DAC Headphone Amplifier. Blucoil Audio Premium 3.5mm Headphone/Microphone Y Splitter Cable (Male-to-Female). Blucoil Portable Earbuds/Earphone Hard Case.
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