Use of wireless transmitting and receiving technology, codec chip technology is mature and reliable, and is used for the development of the characteristics of voice player module, put forward a AT89C2051 MCU to control the core, firing receiver module, codec chip circuit and the second development Voice of electronic modules guides hardware structure, designed to guide attractions after the electronic system automatically receive signals, and activate the corresponding automatic spots voice broadcast feature software. Practice has proved that the system high reliability and low cost, easy to carry, easy to operate and promote a higher value. Electronic guides SCM decoder chip ISD4004 voice module.