iRangeX IRX4 2.4G CC2500 NRF24L01 A7105 CYRF6936 4 IN 1 Multiprotocol STM32 TX Module With CaseDescription:The 4 in 1 wireless module integrate four RF chips (CC2500,NRF24L01,A7105,CYRF6936) into one single circuit board,with MCU baseplate,can support a variety of remote control protocols by identifying the PPM signal output of the remote control,such as Walkera DEVO,Spektrum DSM2,Flysky,Frsky,WLToys,Hubsan,Hisky,etc. It can control up to several hundreds airplanes (or receivers).This module can recognize the remote control PPM signal, then converted into the corresponding standard wireless remote control format,which means that in theory as long as the remote control is with analog functions, it can work.This Multiprotocol TX Moduleis theSTM32 board, all protocols are included. Itis suitable for many brands quadcopters,helicopters and airplanes .You can control RC quadcopters,RC helicopters or RC airplanes flexibility when you insert the TX Module to your Frsky X9D/X9D Plus/X12S,flysky TH9X,Turnigy 9XR/9XR PRO transmitter.As long as your transmitter can use the Open TX firmware,it is compatible with this module.You will get many new ways to control the RC models.Specification:Brand Name:iRangeXItem Name:IRX4Band: 2.4GWeight: About 40gFirmware:STM32Dimension: About 49x22x65mmAntenna Length: About 108mmCompatible Transmitter:Frsky: All the frsky transmitterFutaba: Futaba S-FHSS transmitterFlysky: TH9X (Note: The plastic base of the pins on the transmitter needs to be removed t