3M ™ PELTOR ™ MT13H221A ProTac ™ III Black Earmuff

What it is and why choose it

The 3M™ PELTOR™ MT13H221A ProTac™ III Black Earmuff is an electronic hearing protector designed to attenuate harmful noise while allowing you to hear important ambient sounds below 82 dB. It supports safer communication in noisy environments by letting you listen to warning signals, approaching vehicles, or machine sounds without compromising hearing protection. With level-dependent function, external audio input and robust construction, it is suitable for demanding industrial and construction applications.

Main features

• Electronic hearing protector with effective noise attenuation.
• Level-dependent ambient listening function to hear surrounding sounds up to 82 dB.
• "Listen-only" 3.5 mm input (limited to 82 dB) for connection of external devices such as mobile phones, two-way radios or music players.
• Voice-guided menu system for easy operation.
• Automatic power-off after 4 hours of inactivity to save battery life.
• Low-battery warning signal.
• Electrodes placed on the outer part of the cup to help reduce corrosion caused by sweat.
• Headband version in black with two-point attachment for stable fit.
• Designed to provide higher attenuation compared to the Slim version.
• Supplied ready to use with batteries and instructions.

Technical specifications

Model and configuration

• Product designation: 3M™ PELTOR™ ProTac™ III Headset
• Model: MT13H221A
• Type: Headband earmuff with electronic level-dependent function
• Colour: Black

Materials (MT13H221A headband version)

• Headband: Stainless steel, PVC, PA
• Headband wire: Stainless steel
• Two-point attachment: POM
• Damping material: PVC sheet and polyurethane foam
• Cushion foam lining: Polyurethane foam
• Cup: ABS
• Level-dependent microphones: Polyurethane foam
• Latch: PA
• On/Off/Mode button: TPE
• [+] button: TPE
• [-] button: TPE

Power and operating conditions

• Battery type: 2 x AA alkaline batteries
• Approximate operating time: 100 hours of battery time
• Net weight (including batteries): 355 g
• Operating temperature: -20 °C (-4 °F) to +55 °C (131 °F)
• Storage temperature: -20 °C (-4 °F) to +55 °C (131 °F)
• Service life: 5 years excluding battery

Acoustic performance (Europe)

Model: MT13H221A 3M™ PELTOR™ ProTac™ III Earmuff, headband.

• Standard: EN 352-1:2002
• SNR: 32 dB
• H (high-frequency): 34 dB
• M (medium-frequency): 29 dB
• L (low-frequency): 22 dB

Frequency-dependent attenuation data (EN 352-1:2002)

• 125 Hz: mean attenuation 17.0 dB; assumed protection 13.8 dB
• 250 Hz: mean attenuation 24.0 dB; assumed protection 22.0 dB
• 500 Hz: mean attenuation 29.5 dB; assumed protection 26.9 dB
• 1000 Hz: mean attenuation 36.9 dB; assumed protection 33.6 dB
• 2000 Hz: mean attenuation 37.3 dB; assumed protection 32.4 dB
• 4000 Hz: mean attenuation 39.3 dB; assumed protection 36.1 dB
• 8000 Hz: mean attenuation 35.4 dB; assumed protection 31.5 dB

Connectivity

• External input: 3.5 mm "listen-only" audio input, limited to 82 dB.

Standards and approvals

• Conforms to essential requirements of applicable directives with CE marking.
• Tested and approved according to EN 352-1:2002, EN 352-4:2001/A1:2005 and EN 352-6:2002.
• Notified body: PZT GmbH, An der Junkerei 48 F, D-26389 Wilhelmshaven, Germany. Notified body No. 1974.

Packaging contents

• 1 x Earmuff headset MT13H221A
• 2 x AA batteries
• 1 x User instructions

Limitations of use

• Never modify or alter this product.

Applications and use cases

The 3M™ PELTOR™ ProTac™ III MT13H221A is intended for noisy environments where it is still necessary to hear surrounding sounds and communication.

• Industrial workplaces where ambient awareness is important.
• Construction sites and similar works.
• Railway-related tasks.
• Other areas where machinery noise is present but warning signals, vehicles and process sounds must remain audible.

FAQ

1. Does the ProTac™ III MT13H221A completely block all sound?
   No. It attenuates harmful noise while allowing ambient sounds to be heard below 82 dB through its level-dependent function.

2. What type of batteries does this earmuff use?
   It uses 2 x AA alkaline batteries.

3. How long do the batteries last?
   Approximately 100 hours of operating time.

4. Is there an automatic shut-off function?
   Yes, the headset switches off automatically after 4 hours of inactivity.

5. Can I connect a mobile phone or radio?
   Yes. The 3.5 mm "listen-only" input allows connection of external devices such as mobile phones or two-way radios, with the signal limited to 82 dB.

6. What is the SNR value of this model?
   The MT13H221A has an SNR of 32 dB (H = 34 dB, M = 29 dB, L = 22 dB).

7. What is included in the box?
   One ProTac™ III MT13H221A earmuff, two AA batteries and user instructions.

8. Is this product CE marked?
   Yes, it complies with the essential requirements of the relevant directives and carries the CE marking.

9. Can I modify the earmuff to fit other accessories?
   No. The product must not be modified or altered.

10. What is the recommended service life?
    The indicated service life is 5 years, excluding the battery.

Section 14 – Transport information

Consultar ficha técnica del fabricante.

Section 8 – Individual protection measures

Consultar ficha técnica del fabricante.