IMSA 4C Style Helmet Kit - 8in Straight Cable

4 conductor, IMSA style helmet kit. Includes flexible boom, S9 style noise cancelling microphone, earphone jack, mounting clamps, screws and foam microphone cover.

Part Price Purchase
R HK IMSA $89.99

IMSA 4C Style Helmet Kit - Coiled Cable

4 conductor, IMSA style helmet kit. Includes flexible boom, M101 style noise cancelling microphone, earphone jack, coiled cord, mounting clamps, screws and cloth microphone cover. Made in the U.S.A.

Part Price Purchase
R HK IMSA CC $99.99

NASCAR 3C Style Helmet Kit - 8in Straight Cable

3 conductor, NASCAR style helmet kit. Includes flexible boom, M101 style noise cancelling microphone, earphone jack, mounting clamps, screws and cloth microphone cover. Made in the U.S.A.

Part Price Purchase
R HK NAS $89.99

NASCAR 3C Style Helmet Kit - Coiled Cable

3 conductor, NASCAR style helmet kit with coiled cord. Includes flexible boom, M101 style noise cancelling microphone, earphone jack, mounting clamps, screws and cloth microphone cover. Made in the U.S.A.

Part Price Purchase
R HK NAS CC $99.99

Helmet Speaker Kits

Helmet Speaker Kits

IMSA Speaker Kit

Helmet Speaker Kits

NASCAR Speaker Kit

Helmet Speaker Kits

RACEceiver Speaker Kit


Available with IMSA 4C or NASCAR 3C connectors. Features S9 Noise Cancelling Microphone. Includes mounting hardware. RACEceiver kit is listen-only and has a 3.5mm mono plug.

Part Connector Price Purchase
R HK IMSASPKR IMSA 4C $95.00
R HK NASSPKR NASCAR 3C $95.00
R HK RCVR RACEceiver $39.99

Digital S9 Noise Cancelling Flex Boom Microphone

Wide frequency response for enhanced accuracy with large vocabulary continuous speech recognition systems. Total size is about a dime. Wide bandwidth noise reduction spectrum. More accurate speech recognition in high noise environments. Amplified signal output for interface into any standard microphone input. Simple acoustic integration for existing communication system retrofit.

*Note: Bump on mic housing faces away from mouth*

Part Description Price Purchase
rp hkp-s9-fb S9 Noise Cancelling Mic $69.99