Scope of application: 2W / 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 ~ 16V(rated voltage DC15V); Working current: 3A; The frequency range of 87 ~ 108 MHz; Frequency stability plus or minus 10 PPM; Frequency step 100KHz; Working environment temperature: -10 ~45 degree Celsius; Output impedance 50ohm. Rf power output range 0.3W ~ 15W. Harmonic and noise radiation or less - 60dB. Audio distortion: 0.2%. Frequency response is 50Hz~15000Hz. Separating degree higher than 35dB. Input level < / = 15dBV; Modulation frequency deviation plus or minus 75KHz. SNR > / = 60dB. The machine weighs is about 700g.