[Communication Interface]：UART serial port

[Transmit Power]：30 dBm

[Communication Range]：5 km

[Size]：26.5*33 mm

[Introduction]：The EWM201-470A30S is a new long-range wireless audio transmission module from Chengdu Ebyte, featuring an integrated transceiver design. It offers flexible configuration, ease of use, and a compact form factor. Operating in the 470MHz–510MHz frequency band, the module allows users to configure parameters—such as transmit power, operating channel, and serial baud rate—via commands to suit specific application needs. Supporting microphone input and speaker output, the module operates in point-to-point or point-to-multipoint half-duplex or full-duplex modes; a complete full-duplex intercom system can be assembled simply by connecting an external microphone, audio power amplifier, speaker, antenna, and power supply.