Rugged Radios HK-IFC 4C IMSA Wired Coil Cord Helmet Kit with Mic and 3.5mm Jack

4C IMSA Wired Coil Cord Helmet Kit with Mic and 3.5mm Jack is designed for road racing and offers clear, loud audio suitable for driver communication. Commonly used in open-wheel and sports car series like LMP2, GT3, GT4, and TCR, the kit has a 4-conductor IMSA configuration. It easily installs into most helmets and comes with a dynamic noise-canceling mic, full-flex boom, a coil cord, and a 1/8in jack for earbud connection. The kit is compatible with standard IMSA car harnesses using a 4-conductor plug and requires mono earbuds for models with a 1/8in jack. Mic boom and cable junction block install using hot glue or Rugged Quick Mount for a neat, effortless installation.