NASCAR Car Harness Racing Communications the microphone impedence and style

the microphone impedence and style does not always allow for the same universal interchangeability with a standard NASCAR helmet kit

The Nerdie NASCAR System is a 3-conductor race communication system designed by a racer for racers

They can be wired for mono earbuds as well but stereo is the most common

It will work with our harnesses which are tested to support the typical 150 Ohm dymanic microphone as well as the mics we use

NASCAR Car Harness Racing Communications the microphone impedence and styleNASCAR Car Harness (3 Conductor) 1 4" Switchcraft metal helmet jack for lasting durability 3 Conductor System using 1 4" Stereo Jacks and Plugs Robust Y Block with 6 foot leads for helmet and PTT (Push To Talk) Use with 1 4" NASCAR Helmet Kits Supports IMSA helmet kits with IMSA to NASCAR adapter. EasyLink 5 pin connector allows use with most hand held radios