This item is also listed in the following categories:
Genuine HPI quality spare part for easy maintenance and repairs.
Includes receiver and transmitter crystals.
For use only with 27mHz FM radio sets such as #80553 - HPI TF-10 TRANSMITTER (3ch / FM27MHz) and #80558 - HPI RF-10 RECEIVER (FM 27MHz / 3ch).
Also available are many spare sets of crystals:
#80651 CRYSTAL SET (BROWN BAND 1/FM 26.995MHz)
#80652 CRYSTAL SET (RED BAND 2/FM 27.045MHz)
#80653 CRYSTAL SET (ORANGE BAND 3/FM 27.095MHz)
#80654 CRYSTAL SET (YELLOW BAND 4/FM 27.145MHz)
#80655 CRYSTAL SET (GREEN BAND 5/FM 27.195MHz)
#80656 CRYSTAL SET (BLUE BAND 6/FM 27.255MHz)
FM radio sets can be installed in any RC car or truck for reduced interference compared to AM radio sets, however you will need to purchase an FM transmitter, FM receiver and at least one set of FM crystals.