During WC 2022 it is allowed to use remote control devices with the frequency of 35Mhz, 40Mhz, 2.4Ghz. Other frequencies are prohibited.
WC 2022 approved transponder list:
RC4 Pro has -
very short range !!! good for cars not for boat!!!
Firmware 4.4- Rc 4 decoder
MRT transponder will work good.