Ear Jacks only PCI's most popular helmet wiring kit for Circle Track, Nascar, Drag Racing and Drag Boats. Complete with Flexible Boom, 150 ohm Dynamic Microphone, 1/4" Standard Plug and 1/8" (3.5mm) Ear Bud Jack. Complete your system with PCI's Wiring Harness, Radio Interface Cables and Challenger Ear Pieces.
- Nascar 1/4
- Highest Quality in the industry