Sennheiser Consumer Audio RS 175 RF Wireless Headphone System for TV Listening with Bass Boost and Surround Sound Modes,Black

Compact, ergonomic over-ear headphones. Connectivity Technology: Wireless.Frequency response 17 - 22,000 Hz.Specific uses for product : Communication.Transducer principle : 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: <0.5 percentage at 1 kHz, 100 dB SPL. Range: Up to 100 m, Digital wireless technology ensures that signal transmission remains clear and accurate, Easy to set up and enjoy, MAIN controls located on headphones, Wireless communication technology: Kleer