規格
官網：
http://www.koss.com/en/products/headphones/full_size_headphones/ESP950__ESP950_Electrostatic_Headphone
Frequency Response： 8-35,000 Hz
Impedance： 100k ohms
Sensitivity： 98 dB SPL/1mW
Cord： Straight, Dual Entry, 4ft
Includes energizer，battery pack，leather carrying case，connecting cables and 120 VAC adapter
Koss Limited Lifetime Warranty
開箱
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