[Introduction]：E200-470A17S is a new wireless audio transmission module, which integrates transceiver. It has the characteristics of small size and convenient use. It works in the frequency band (470.033 ～ 512.273MHz) (default 512.273MHz), uses hardware I/O to select channels, supports MIC input and speaker output, and is compatible with 3.3V and 5V power supply voltages.