3M 7100203299 Protective Communication product is a wired earmuff-style hearing protection device. It provides an attenuation rating of 26 dB and weighs 273 g. It is designed for listen-only communication with a dynamic microphone class/type. This product features a headband suspension method and CSA Class A certification. It includes an auxiliary port for FLX2 compatibility, external audio input, and communication via an external 2-way radio. While not intrinsically safe, it is suitable for various communication needs in industrial settings. Overall, this 3M product offers reliable and effective protective communication.