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Specifications
ManufacturerEtymotic Research
ModelER4 Extended Response
Part #ER4XR
TypeIn Ear
Frequency Response20 Hz - 16 kHz
MicrophoneNo
WirelessNo
Enclosure TypeClosed
Active Noise CancellingNo
ConnectionStereo 3.5mm Audio
Channels2.0
Impedance45 Ω
Sensitivity at 1 V RMS98 dB
Cord Length60"
UPC Codes846430002029