The Howard Leight™ Impact® Pro Industrial earmuff has a high passive rating (30 NRR; 33 SNR) and is built to protect worker's hearing while allowing them to have environmental awareness. All day comfort is provided by the textile headband and cushioned muffs.

Features and benefits:
-Directional stereo microphones amplify ambient sounds, such as alarms/warning, signals, and conversations whilst suppressing loud, impact noises down to a safe level of 82dB
-Audio/auxiliary jack enables connection to a personal listening device
-On/off and volume control button
-Requires 2x AA batteries