Scope of application: 5W / 15W CNC FM radio transmission by wireless transmitting signal, its transmission range, clear sound quality, easy to operate, can be widely used in the campus, community, industrial and mining, tourist attractions, such as rural place, also a personal amateur ideal FM radio equipment. Technical parameters: Working voltage DC12V ; Working current:< 2A; The frequency range of 76~108MHz; Frequency stability plus or minus 10 PPM; Frequency step 100KHz; Working environment temperature: -10 ~45 degree Celsius; Output impedance 50ohm. Rf power output range 5W / 15W. Harmonic and noise radiation or less - 50dB. Audio distortion: 0.3%. Bluetooth is not less than 5 meters distance.Frequency response is 50Hz~15000Hz. Separating degree higher than 30dB. Input level < / = 15dBV; Modulation frequency deviation plus or minus 75KHz. SNR > / = 60dB.