The portable TC-RFJ16 digital DSSS receiver is designed to receive 16 audio channels,offering CD quality sound. The unit is powered by a rechargeable Lithium-ion battery pack. The selected channel number, battery level and RF signal strength are displayed on LCD screen. Equipped with an individual DSSS receiver, a participant can listen to any selected language channel on a personal headphone, monitor the battery status, check whether or not the unit is receiving the signal properly,and adjust volume level for comfortable listening. The floor language is heard when the interpreter turns off the microphone . Any number of receivers can be used within the effective working range.