The Riedel MAX-D1 is a High Performance Headset for high noise environments. Riedel intercom headsets combine optimal audio quality with absolute reliability and are compatible with radios, beltpacks and intercom control panels from other manufacturers. As an intercom technology specialist, Riedel perfectly understands the specific demands and requirements of customers for intercom headsets. Riedel Headsets are durable, lightweight, small, comfortable, and easy to clean and to maintain.