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Quad BA system
Sony's original design BA Driver Units
High level sound isolation
Light housing
Preformed ear hanger for stable fit
Driver Unit
Quad balanced armature
Frequency Response5Hz-40000Hz
Cord LengthApprox. 1.2m, silver-coated OFC strands, ear hanger, L-shaped gold-plated stereo mini plug, Approx. 1.2m, silver-coated OFC strands, ear hanger, L-shaped gold-plated balanced standard plug