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美國 Etymotic ER4P 入耳式隔音耳機

$1,938
Frequency Response 20 Hz – 16 kHz
Accuracy Score 4B (92%) 4S (92%) 4PT (86%)
Transducers balanced armature
Noise Isolation 35-42 dB
Impedance (@1kHz) 4B (100 Ohms) 4S (100 Ohms) 4PT (27 Ohms)
Sensitivity (@1 kHz) SPL at 0.1v 4B (90 dB) 4S (90 dB) 4PT (102 dB)
Maximum Output (SPL) 122 dB
Cable 5 ft
User Replaceable ACCU-Filters Yes
Warranty 2 Years
Custom-Fit Option Yes
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