3M 7100088455 is a protective hearing product with an earmuff style. It provides an attenuation rating of 21 dB and 19 dB, making it ideal for noise reduction. This wireless device has a battery life of 100 hours and is designed to be hard hat attached. Weighing only 322 g, it offers comfortable wearing. Though non-Bluetooth, it supports communication through environmental listening and has a 3.5mm auxiliary port for external audio input. With level-dependent function for ambient listening, it does not include built-in 2-way radio or FM/AM radio. 3M ensures reliability and quality in its products.