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3M electronic ear muffs headband style black finish

3M

3M HRXS221A-NA electronic ear muffs measurement

SKU CH-2C7D-9WXGC MPN HRXS221A-NA

Electronic ear muffs provide hearing protection and radio communication with two AA batteries included

  • Electronic hearing protection with integrated communication
  • Includes two AA batteries for immediate use
  • Over-ear muffs deliver consistent noise reduction
  • Compatible with radios for hands-free teamwork
  • Listen-only design receives audio without transmitting

Electronic ear muffs for team communication

The HRXS221A-NA headset provides hearing protection while connecting to a radio network for hands-free coordination between compatible devices. Listen-only operation lets the user receive voice or audio messages without transmitting. The over-the-ear muffs deliver consistent noise reduction and remain more visible than ear plugs for safety compliance on loud job sites.

Includes two AA batteries for immediate use

The supplied cells power the electronic circuitry so the headset works straight from the package without sourcing separate batteries. This removes a common setup delay and ensures the noise-reduction electronics and audio reception are operational as soon as the muffs are donned.

Simple corded connection to compatible radios

Plug the attached cord into a supported walkie-talkie or personal audio device to enable listen-only reception. The over-ear design fits consistently for reliable noise attenuation, though users needing two-way transmission or wireless freedom will require a different headset configuration.

Highlights

  • Electronic hearing protection with integrated communication
  • Includes two AA batteries for immediate use
  • Over-ear muffs deliver consistent noise reduction
  • Compatible with radios for hands-free teamwork
  • Listen-only design receives audio without transmitting

Specifications

Brand3m
Shipping weight0.54 kg
Package size211 × 155 × 112 mm

Questions about this item

How often do the two AA batteries need to be replaced during regular use?

The headset ships with two AA batteries; replacement frequency depends on daily usage hours and volume level, so plan to swap them when audio clarity drops or the unit fails to power on.

What limits continuous wear during a full shift?

The over-the-ear muffs provide consistent fit for their noise reduction rating, but prolonged clamping force and heat buildup around the ears typically become the first comfort limit.

How much heat or noise does the headset generate when worn all day?

The unit itself produces no audible fan noise and negligible heat; warmth felt after hours comes from the ear cups sealing against the head rather than from internal electronics.

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