Amazon.com has a Sennheiser HD201 Headphones for $17.75. Free Shipping on orders over $25.
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- Connector – 3.5mm with Adapter to 1/4 inch n
- Frequency Response – 18-22,000 Hz n
- THD< 0.2 % n
- Input Impedance – 24 Ohms n
- Sensitivity SPL – 108dB at 1KHz, 1Vrms