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Continue to ChatMRT Transponder works with mylaps RC3 RC4 system https://www.powerhobby.com/products/mrt-transponder-works-with-mylaps-rc3-rc4-system
MRT Transponder works with mylaps RC3 RC4 system https://www.powerhobby.com/products/mrt-transponder-works-with-mylaps-rc3-rc4-system