CD quality sound, more than 100 meters effective transmission range. GONSIN TC-RF08 DSSS simultaneous interpretation system utilizes the worldwide license-free 2.4GHz ISM frequency band and the state-of-the-art Direct Sequence Spread Spectrum (DSSS) technology to deliver CD quality sound, provide excellent immunity from both noise and interference, and insure high security against unauthorized listening. The system is designed to offer distortion-free wireless communication for simultaneous interpretation and language distribution in 8 channels,with operating range of 50 to 200 meters, ideally suited for use in business and government conferences, international conventions and other multilingual applications indoor and outdoor.