... COM Port, awaken from Air;3. Modulation mode and Frequency Modulation mode:GFSK,Frequency:433MHZ. Also, 868mhz and 915mhz is possible.4 ... air, control, etc.10. High reliability, small and light Single chip radio - frequency integrated circuit and single chip MCU are used for lessened ... our modules. RF 433/868/915MHz Module | Data Transceiver JZ877 for remote control and industrial,wireless adapter