2.4 GHz 4 CH Wireless FM Stereo Audio Video Transmitting Module A\/V Transmitter<br> Feature:  <br> Type: 2.4 GHz FM Stereo Audio Video Transmitting<br> Wide working voltage: 3.3-5.5V<br> Low power consumption: 3.3V， 85mA<br> Large power transmitter: 17dBm Expected range: about 30m in open area What receivers are appropriatly matched to this transmitter?: the receiver have the same frequency can match it What is the power in milliwatts (mw)?: 100mW It has 4 channels. it transmit the frequency what you have set for it This is Analog signal transmission module<br>  <br> Specifications:  <br> 1.  LCD display is more intuitive and accurate， with very low power consumption and minimal noise interference.<br> 2.  power off before the power of the automatic memory data<br> 3. multi-channel audio input automatic switching<br> 4. support for serial command control.<br>  <br> Package Included:  <br> 1 x Transmitting Module