RF-904FH & KR-411FH (for EX-10 Eurus) No.15508
RF-904FH & KR-411FH (for EX-10 Eurus) No.15508
RF-901SM 2.4GHz SS RF Module for MiniZ No.15502 (DISCONTINUED)
RF-901SM 2.4GHz SS RF Module for MiniZ No.15502 (DISCONTINUED)

For Mini-Z ASF / MR-03 / dNaNo
with EX-1UR,EX-10Helios,Esprit3Universe

RF-902SM 2.4GHz SS RF Module for MiniZ No.15505
RF-902SM 2.4GHz SS RF Module for MiniZ  No.15505
RF-904FH (for EX-10 Eurus) No.15509
RF-904FH (for EX-10 Eurus) No.15509
Module and Rx set (RF-902S + KR-409S) No.15503 (DISCONTINUED)
  Module and Rx set (RF-902S + KR-409S)  No.15503 (DISCONTINUED)
RF-903FH & KR-411FH No.15510 (DISCONTINUED)
RF-903FH & KR-411FH No.15510 (DISCONTINUED)

Convert your ESPRIT3, EX-1UR,EX-10 HELIOS to FHSS
RFModule: RF-903FH & Receiver:KR-411FH & Antenna Cap

RF-903FH No.15511 (DISCONTINUED)
RF-903FH  No.15511 (DISCONTINUED)

Convert your ESPRIT3, EX-1UR,EX-10 HELIOS to FHSS
RFModule: RF-904FH

Check Compatibility

KO PROPO’s new hybrid 2.4GHz system.
With the merit of KO's DS-SS (Direct Sequence-Spread Spectrum) knowledge, the introduction of KO's FH-SS (Frequency Hopping-Spread Spectrum) allows for a stronger performance against interference. Create a better response and comfort by updating your transmitter’s module and receiver. We offer you the best performance system with the new system.


Easier to hit the driving line.
KO PROPO FHSS allows you to experience a clean response. Your vehicle will turn beautifully in the corners.
Each module has a different hopping pattern.
Having different hopping patterns avoids interference. You can operate this system amongst 50 other vehicles.
160m is 2x the distance of our former line up.
The operation distance is greatly improved by optimizing the telecommunication system.
The binding time is greatly reduced to 0.01 seconds or less.
Turn it on and drive it.

The line up is prepared. To convert your transmitter….
These are available.

RF-904FH & KR-411FH (for EX-10 Eurus) No.15508
RF-904FH & KR-411FH (for EX-10 Eurus) No.15508
RF-904FH (for EX-10 Eurus) No.15509
RF-904FH (for EX-10 Eurus) No.15509
RF-903FH & KR-411FH No.15510 (DISCONTINUED)
RF-903FH & KR-411FH No.15510 (DISCONTINUED)

Convert your ESPRIT3, EX-1UR,EX-10 HELIOS to FHSS
RFModule: RF-903FH & Receiver:KR-411FH & Antenna Cap

RF-903FH No.15511 (DISCONTINUED)
RF-903FH  No.15511 (DISCONTINUED)

Convert your ESPRIT3, EX-1UR,EX-10 HELIOS to FHSS
RFModule: RF-904FH

Check Compatibility
Module and Rx set (RF-902S + KR-409S) No.15503 (DISCONTINUED)
  Module and Rx set (RF-902S + KR-409S)  No.15503 (DISCONTINUED)
Check Compatibility
RF-901SM 2.4GHz SS RF Module for MiniZ No.15502 (DISCONTINUED)
RF-901SM 2.4GHz SS RF Module for MiniZ No.15502 (DISCONTINUED)

For Mini-Z ASF / MR-03 / dNaNo
with EX-1UR,EX-10Helios,Esprit3Universe

RF-902SM 2.4GHz SS RF Module for MiniZ No.15505
RF-902SM 2.4GHz SS RF Module for MiniZ  No.15505
Check Compatibility