NKTECH CZE-7C 1W/7W 76~108Mhz Backlight LCD Stereo PLL FM Transmitter Radio Broadcast Station + AC Adapter + Antenna + Audio Cable Black Frequency range from 76MHz to 108MHz, Output Rower: 1W/7W. The control board is designed with high performance MCU STC. Transmitting power can switch between 1W and 7W. Reference Range: 5Km-10Km (A Barrier-Free Environment). Blue backlight LCD to display five digits of frequency.