PYLE PLMD8 Digital 7 Channel FM Modulator Universal Wired FM Audio Modulator Digital PLL Synthesized FM Stereo Modulator Antenna RF Input(Female) Output(Male) Jacks 7 Frequency Settings On Selectable DIP Switches 87.7MHz/87.9MHz/88.1MHz/88.3MHz/ 88.5MHz/88.7MHz/88.9MHz Built In Ground Isolator RF Output Level: 60dB Max S/N Ratio: 65dB Stereo Separation: 40dB Operating Voltage: 10V-16VDC Left Right Stereo RCA Female Input Jacks DC 12 Volt 0.5W With 2 Mounting Tabs Dimensions:1.15"" (H) X 4.25""(W) X 2'' (L) Sold as : Unit