3M 7000009664 earmuff is a noise attenuating headset that provides a high level of hearing protection. With an attenuation rating of 29.0 decibels, it effectively reduces noise exposure. The behind-the-head style offers a comfortable fit, while the earmuff shape ensures optimal sound isolation. This CSA Class AL certified product is not metal detectable and does not feature Bluetooth or moisture resistance. It is electrically insulated and dielectric, making it ideal for various applications. The cordless design allows for hassle-free use. Overall, this reliable 3M earmuff delivers excellent hearing protection and comfort.