Emax Aeris TX is an 868/915MHz ELRS transmitter expansion module for large JR radio shafts. The module is compatible with radios with OpenTX or EdgeTX firmware. ExpressLRS (abbreviated ELRS) is an open source project and both transmit and receive modules are produced by multiple manufacturers. ELRS is currently one of the most advanced RC transmissions. It offers reliable long-range link, high refresh rate, adjustable power, update via wifi and more.
ELRS has great community support. However, it is an open system that is rapidly evolving and changing. All information about ELRS can be found at here.
The Emax Aeris has a 1.29" OLED display with a resolution of 64x128px, on which you can clearly see all the information you need. The ELRS module can be configured using joystick, so there is no need to use LUA scripts. The Aeris TX also features an XT30 connector for powering an external 2-5S battery, extending the battery life in the radio. This is especially useful for long long-range flights and high transmit powers. Another advantage of the module is the USB-C connector, which is used for easy firmware updates or transferring telemetry to a PC in Airport mode.