4C IMSA Wired Coil Cord Helmet Kit with Mic and 3.5mm Jack Replacement Parts Total shield RF blocking

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4C IMSA Wired Coil Cord Helmet Kit with Mic and 3.5mm Jack Replacement Parts Total shield RF blockingDesigned for road racing, the IMSA Wired Helmet Kit delivers loud, race ready audio and clear driver communication. Trusted in open wheel and sports car series like LMP2, GT3, GT4, and TCR, this kit features a 4 conductor IMSA configuration and installs easily into most helmets. This version includes a dynamic noise canceling mic, full flex boom, coil cord and a 1 8" jack for connecting your preferred earbuds. Features: IMSA 4 conductor configuration