What is the Noise Reduction Rating (NRR) of the Allen Ultrx Bionic Fuse Ion electronic earmuffs, and are they suitable for indoor shooting ranges?

The Allen Ultrx Bionic Fuse Ion earmuffs feature an NRR of 22 dB, tested and certified to ANSI S3.19 standards. While they are ideal for outdoor target shooting and hunting, an NRR of 22 dB may be insufficient for enclosed indoor shooting lanes or large-calibre unsuppressed magnum firearms, where higher passive ratings or dual protection are recommended.

What kind of batteries does the Allen AL4171 use, and are they rechargeable via USB?

This Ion model runs strictly on 2 standard AAA alkaline batteries, which are user-replaceable. If you specifically require an integrated USB-C rechargeable lithium pack rather than removable AAA batteries, you would need to look at alternative variants in the Bionic Fuse line.

Do these electronic earmuffs comply with Australian standards for hearing protection and radiofrequency devices?

The hearing protection capabilities of this model are tested and rated to the ANSI S3.19 standard (NRR 22 dB) rather than the Australian/New Zealand AS/NZS 1270 standard (SLC80 rating). Additionally, because it operates on standard 2.4 GHz Bluetooth 5.3 and runs on DC battery power without mains connection, formal 240V SAA plug compliance and ACMA/RCM markings are not stated by the manufacturer.

Can I connect my smartphone to the Allen Ultrx Bionic Fuse Ion earmuffs for music and phone calls while at the range?

Yes, these earmuffs feature Bluetooth 5.3 technology, allowing you to wirelessly stream audio and take calls from compatible smartphones or communication radios. Bluetooth 5.3 provides a nominal operating distance of approximately 10 metres under line-of-sight conditions.

Electronic Earmuffs - Allen ULTRX AL4171

The Allen ULTRX™ Bionic Fuse Ion Bluetooth® Electronic Earmuff (AL4171) is an active hearing protection headset engineered for shooting sports, hunting, and range instruction. Rated at a Noise Reduction Rating (NRR) of 22 dB tested to ANSI S3.19 standards, it uses dynamic wave compression circuitry to suppress impulse gunshot noise while maintaining situational awareness. Integrated high-gain omnidirectional microphones deliver 6x omni-hearing boost with symmetrical acoustic response to amplify ambient range commands, while Bluetooth 5.3 connectivity allows wireless audio streaming and mobile device communication without removing the headset.

Key Features

Sound Compression: Compresses harmful impulse noises while preserving low-level ambient awareness.
6x Omni-Hearing Boost: Amplifies ambient sounds and speech up to six times via high-gain omnidirectional microphones with symmetrical response.
Bluetooth 5.3 Connectivity: Multi-sync harmonics enable wireless connectivity to smartphones and communication radios up to a nominal 10-metre line-of-sight range.
Ergonomic Folding Design: Compact folding profile with foam-padded ear cushions and a padded headband for long sessions and compact gear bag storage.
User-Replaceable Power: Operates entirely on 2 standard AAA alkaline batteries for field replacement without relying on mains power.

Specifications

Model Number: AL4171
Noise Reduction Rating (NRR): 22 dB (ANSI S3.19 certified)
Wireless Protocol: Bluetooth® 5.3
Weight: Approximately 0.80 lbs (363 g)
Dimensions: 8.5 in L × 5.5 in W × 4.25 in H (216 mm × 140 mm × 108 mm)
Power Source: 2 × AAA alkaline batteries (not included)
Audio Amplification: 6x ambient sound boost
Colour: Slate

Who is the Allen Ultrx Bionic Fuse Ion Bluetooth Electronic Ear Muffs Slate 22db for?

Outdoor target shooters — provides an ANSI S3.19 certified 22 dB NRR to compress impulse gunshot noise while maintaining clear range safety awareness at a total carry weight of 0.80 lbs (363 g).
Hunters needing range communication — features Bluetooth 5.3 wireless synchronization for paired phone and radio communications, combined with 6x omnidirectional sound amplification to track environmental cues while wearing this electronic shooting earmuff.
Tactical training participants — utilizes a 2 × AAA battery platform to ensure immediate power swaps in the field without charging downtime during multi-day drills.

Less suitable for: Enclosed indoor shooting lanes, high-calibre rifles, or unsuppressed magnum firearms where an NRR 22 dB rating alone is insufficient (higher-rated 26–30+ dB passive earmuffs or dual protection are better suited), or users requiring integrated USB-C rechargeable lithium power packs instead of AAA batteries.

SKU	AL39965LP
Model #	AL4171
Brand	Allen
Shipping Weight	1.0000kg

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Allen Ultrx Al4171 Electronic Earmuff Bluetooth 22db Nrr Slate

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