Stilo Wrc Practice Headphones. These Superbly Comfortable Headphones Offer Excellent Protection Against Car Noise, Transmission And Road, While Allowing Clear And Concise Communications Between The Driver And The Co-Pilot, As well As External Radios Or Mobile Phones. Designed to be used over long stretches between stages, in which it is generally illegal to wear a helmet on the public road. These are connected to any of the Stilo Wrc Intercom Amplifiers, for Trophy Amplifiers See the Trophy Headset. Fully Adjustable Design With A Flexible Microphone Arm To Ensure You Can Place The Microphone Arm Near The Mouth.