Nerdie NASCAR Helmet Kit (3-Conductor) Race Comms the harness can easily be

the harness can easily be plugged into directly as a form of back-up redundancy

Radios not included

1/8" earphone jack (mono jack for earbuds or speakers)

It uses a 680 Ohm noise-cancelling Electret Condenser Microphone

Up to 5 additional helmet kits for $25

Nerdie NASCAR Helmet Kit (3-Conductor) Race Comms the harness can easily beThe Nerdie NASCAR helmet kit has been developed through our experience endurance racing in the 24 Hours of LeMons. While Nerdie is new to the web, this product has been serving racers since the fall of 2011 with several hundred in use. These helmet kits are handmade from scratch here in the USA. Nerdie uses high quality all metal Rean connectors with fully shielded wiring and a noise cancelling electret microphone. The end result is a effective,