E-Racer 500: FITS FLUSH UNDER A HELMET:  

  •   Custom molded, handmade of superior soft gel silicone in your favorite color   
  •   Provides highest degree of safety, comfort and isolation from the intense noise levels on the track   
  •   Tiny micro-speakers reproduce pit crew communications with exceptional clarity
  •   Integrated Delphi Sensor System constantly monitors dynamic forces exerted on the driver’s head
  •   Enhances driver concentration through the superior isolation of a custom-fit silicone design