The Challenger II™ was designed for auto racing communications as an effective way to transmit information from pit crew to driver. Its unique design allows it to be worn comfortably under any racing helmet without adding excess weight or bulk. The custom fit and sturdy construction provide prolonged use on even the most demanding racecourses and under strenuous driving conditions.

• The transducers are optimized for communications bandwidth allowing crystal clear transmission.
• Brilliant, comfortable foam rubber ()
• Complete with heavy duty cord and switchcraft mono plug
• 28db ambient noise reduction
• 18 inch heavy duty cord
• Switchcraft mono jack
• Soft, semi-custom molds
• Includes PCI zipper carrying case