According to receiver a Single channel model: a non automatic selection receiver or an automatic selection receiver with only one channel is installed in the case of a receiver. The former has almost no market in Taiwan, but the export market is the cheapest one (big color goods). The latter is the best model for multi-channel simultaneous use in professional occasions to avoid signal interference due to its simple use and stable characteristics. B. Dual channel model: in the case of one receiver, a non automatic or automatic signal selection receiver with two channels is installed to make full use of the space in the case and reduce the cost. The former is the so-called "Asian fighter" model. Because of its simple design, it has become the main model of Taiwan's mass production low-cost manufacturers. The latter is difficult to deal with internal interference and antenna mixing and matching due to complex mechanism and circuit. Only a few manufacturers producing professional models have models.
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FM wireless microphone: commonly known as FM, it refers to FM 88-108MHz international FM broadcasting