The Nitro Bee Xtreme is feature packed and simple to use, making it the perfect race receiver for dirt track, circle track, road racing drivers, teams, and track officials. This powerful racing communication device will outperform your expectations with its ease of use, loud clear sound, and one-of-a-kind features that will take your race to the next level! With one-way race receiver mandated at race tracks across the country, and being required by sanctioning bodies like MSNZ, Muscle cars, OK cup, 2K cup, AUMS, NAZCAR, Speedway, IMSA, IMCA, Lucas Oil Late Model Dirt Series, USAC, ARCA, NASCAR, and more, the Nitro Bee Xtreme race receiver is the clear choice for clear, reliable racing communication.