The work of this project consists of two sectors: Department of signal and the receiver signal sector sector consists of an FM radio transmitter circuit 2.4GHz and DTMF signal generator circuit, which serves to transmit the audio signal, and the signal is controlled by the control unit in conjunction with the audio source and set the best of the region is composed of a series of 4 speakers each series will have the traditional sector. FM circuitry frequency 2.4 GHz and DTMF decoding circuits serve as a radio receiver audio signal and the signal level control to adjust the receiver.
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