3M Peltor ProTac III Impulse Hearing Protector 32 dB Headband Earmuffs MT13H221A

In industrial and construction environments where impulse noise is a daily hazard, the 3M Peltor ProTac III provides robust hearing protection while allowing you to stay aware of your surroundings. The level-dependent function amplifies low-level sounds like speech and warning signals, yet instantly suppresses harmful impulse noises above 82 dB. With an SNR of 32 dB, it offers high attenuation for demanding workplaces.

Key specifications

• Hearing Protection Type: Headband Earmuffs
• Noise Reduction Rating (SNR): 32 dB
• Level-Dependent Function: Yes (Active Listening)
• Audio Input: 3.5 mm Stereo Jack (AUX)
• Battery Type: 2 x AA Batteries
• Battery Life: Up to 100 hours
• Automatic Shut-off: Yes (4 hours)
• Low Battery Warning: Yes
• Microphone Type: Environmental Listening Microphones
• Volume Control: Electronic
• Color: Black
• Headband Material: Stainless Steel, PVC, ABS
• Ear Cushion Material: PVC, PU Foam
• Cup Material: ABS
• Operating Temperature: -20°C to +55°C
• Storage Temperature: -20°C to +55°C

Why choose it

The ProTac III combines high attenuation with electronic sound management, making it ideal for environments where communication and situational awareness are critical. The 3.5 mm AUX input lets you connect external audio devices, and the long battery life ensures reliable performance throughout the workday.

Ideal use cases

• Industrial manufacturing and processing
• Construction and heavy machinery operation
• Forestry and agriculture
• Any workplace with intermittent impulse noise

Good to know

Complies with EN 352-1, EN 352-4, EN 352-6, and EN 352-8 standards. The automatic shut-off after 4 hours helps conserve battery life, and a low battery warning alerts you when replacement is needed.