iRangeX IRX4 2 4G CC2500 NRF24L01 A7105 CYRF6936 4 IN 1 Multiprotocol ARM 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 Module is the ARM board all protocols are included It is suitable for many brand s quadcopters helicopters and airplanes You can control RC quadcopters RC helicopters or RC airplanes flexibility when you insertthe 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 ARMDimension About 49x22x65mmAntenna Length About 108mmCompatible Transmitter Frsky All the frsky transmitterFutabas Futabas S FHSS transmitterFlysky TH9X Note The plastic base of the pins on the transmitter needs to be