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Creative HS-450 Headset with Microphone, 40mm driver, Noise-canceling boom mic, volume control with mic mute switch, ideal for Internet chat and gaming, Headphone Specifications - Frequency Response: 20Hz ~ 20kHz, Impedance: 32ohms, Sensitivity: 105dB, Microphone Specifications - Microphone: Noise Cancelling Condenser, Frequency Response: 100Hz-16kHz, Impedance: 2.2ohms, sensitvity (1kHz): -42dBV/Pa
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