The RX-988KB is designed for multi room or multi system application. The system is featured with excellent interference proof. The very wide bandwidth of the transmitter is across 108 MHz while the receiver covers 36 MHz. It provides great versatility when multi systems are necessary. The same transmitter can go room to room as long as receivers within the 108MHz range. The stand alone preset channel selector is displayed by LED. Each number stands for two frequencies, one for the left and another for the right channel. The JTS innovative REMOSET function sets the frequency, RF power, sensitivity of the microphone by push a button.