The HR70 FM Digital Transmitter from Rolls is designed to receive an audio signal from the built-in XLR or RCA input jacks and broadcast the audio via FM radio. Select the frequency on which you would like to broadcast those signals—87.5 to 108 MHz—and you are now sending signals via FM radio. The HR70 is equipped with power LED and clip LED indicators, and a frequency response of 20 Hz to 12.5 kHz. In addition, there is a built-in talk-over circuit. An FM antenna is also included.