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Description
High fidelity earphone - white box
ER4S Stereo earphones were designed to compensate for the high frequency emphasis in all CD recordings, in order to provide accurate sound reproduction.
Performing musicians often use them as in-ear monitors because the response of the ER4S matches the response of most typical monitor loudspeakers.
The high accuracy and exceptional sound isolation of the ER4S have made these earphones popular with musicians, recording engineers and audiophiles.
ER4S earphones can be used with a headphone amplifier when using low power portable devices
