The 3M PELTOR ProTac III Headset MT13H221A is an electronic hearing protector designed for professionals working in noisy industrial environments. It helps reduce hazardous noise while allowing users to hear conversations, warning signals and surrounding workplace sounds through level-dependent microphones.

The headset features a 23 dB Noise Reduction Rating (NRR) and a 3.5 mm listen-only stereo input for connecting compatible devices such as mobile phones and two-way radios. Voice-guided controls make settings easier to manage during use.

Key Features

• 23 dB Noise Reduction Rating (NRR)
• Level-dependent ambient listening
• Environmental microphones for situational awareness
• 3.5 mm listen-only stereo audio input
• Voice-guided menu system
• Automatic power-off after 4 hours of inactivity
• Low-battery warning indicator
• Approximately 100 hours of battery life
• Professional headband design

Suitable Applications

• Industrial manufacturing
• Construction sites
• Workshops and maintenance areas
• Utilities and engineering operations
• Other high-noise workplaces

FAQs

What is the NRR of the 3M PELTOR ProTac III?
The MT13H221A model has a 23 dB Noise Reduction Rating.

Can users still hear conversations while wearing it?
Yes. Level-dependent microphones allow ambient sounds and nearby speech to remain audible while the headset provides hearing protection.

Can a phone or two-way radio be connected?
Yes. The headset includes a 3.5 mm listen-only stereo input for compatible external devices.

How long does the battery last?
The typical battery operating time is approximately 100 hours, depending on use and operating conditions.

Does the headset switch off automatically?
Yes. It automatically powers off after approximately four hours of inactivity to help conserve battery life.