Sennheiser RS 175-U Digital Wireless TV Headphones

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About This Compact, ergonomic over-ear headphones. Connectivity Technology: Wireless.Frequency response 17 - 22,000 Hz.Specific uses for product : Communication.Transducer principl e : Dynamic, Closed. Carrier frequency : 2.4 – 2.48 GHz. Bass boost and surround sound listening modes. Maximum sound pressure level: 114 dB at 1kHz, 3 percentage THD. THD, total harmonic distortion: Show more