Check the listing for details. Wireless FM Transmitter for Church Long Range Stereo Broadcast Station Radio 7W. Condition: New. Listed at 86.21 USD. Features With 3.5mm AUX and microphone inputs: compatible with many audio devices such as microphones, MP3, ipod, mobile phones, tablet, computer, TV etc., with independent 3.5mm AUX and MIC input volume control, easily and convenient to create your own radio station. Switchable 1W/7W output power and much longer transmission distace: with high-gain antenna, the launch distance can reach 4000m (13123ft) in barrier-free environment with GP antenna, especially suitable for quiet places like churches, car theater, fleet communication etc. 76-108MHz wide transmission frequency range: just set the channel you want, and the sound will be transmitted, widely used for campus radio, shopping mall radio, wireless audio, factories, schools, supermarkets, farms, office space, conference speech etc. Unique design and perfect performance: adopting advanced modulation system and built-in PLL frequency, audio pre-emphasis, limiter, and low-pass filter circuit. Support clear, strong and stable signal transmissio, the stereo sound is very clear and the distortion is less than 0.5%. With LCD display and excellent heat dissipation: convenient to show the working status in real time and all settings can be auto storaged. Its high-quality aluminum alloy material and heat sink can disperse excessive or unwanted heat to guarantee its long time stable work. Parameters Output power: 1W/7 W (Switchable) Ideal launch distance: 2KM-4KM(barrier-free environment) Audio input: 3.5mm AUX / Microphone Audio output: FM transmisison Audio frequency response: 20Hz-15000Hz(±0.2dB) Frequency range: 76-108Mhz Frequency step: 100KHz Frequency stability: ±10ppm(-10℃- +60℃) Frequency stabilization method: PLL Modulation method: FM stereo Frequency deviation: < ±75kHz Clutter and harmonic: