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The Koss PRO4AA circumaural headphones collocate noise-isolating functionality, a padded rubber headband, cushioned ear pads, and an 8-foot coiled cable. Additional features include a 10 – 25,000 Hz frequency response, 95 dB/mW sensitivity, and 250 ohms nominal impedance.
Features List:
- Circumaural design
- Noise-isolating functionality
- Padded rubber headband
- Cushioned ear pads
- 8-foot coiled cable
- 10 – 25,000 Hz frequency response
- 95 dB/mW sensitivity
- 250 ohms nominal impedance
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