The Rugged Temple Transducer comes equipped with all the features of the basic model (RMN4049). It sports a bigger Push-to-Talk button and a larger noise-canceling boom microphone. It is fully adjustable for different head sizes, making it comfortable for extended-wear. Over-the-head band allows users to wear helmets, hardhats and other head gear and it really stays in place. Water-resistant boom microphone is ideal for use in blowing rain and the secure cap on PTT prevents accidental activation in mission critical situations.