iRangeX IRX4 Plus 2.4G CC2500 NRF24L01 A7105 CYRF6936 4 IN 1 Multiprotocol ARM TX Module With Case Precise details: -Note: The STM32 MCU have change to ARM, firmware is ARM CORTEX-M The new stock will be ARM, Existing inventory is not affected -Overview: This 2.4G Multi-protocol TX Module is APM32 ARM microcontroller based module. All available protocols are included in serial mode. It is suitable for many brand of quadcopters, helicopters and airplanes. This module integrate four RF chips (CC2500,NRF24L01,A7105,CYRF6936) into one single circuit board, it .supports a variety of remote control protocols ,such as for Futaba S-FHSS, Walkera DEVO, Spektrum DSM2, DSMX, Flysky, Frsky, WLToys, Hubsan, Hisky, Esky , Assan etc. You can control your craft flexibility with it , and You will get much excellent experience with you favorite transmitter. -Specification: Name: iRangeX Item Name: IRX4 Plus Operating Voltage: 5-14V Operating Current: