The Allen Ultrax 4148 Bionic Bluetooth earmuff combines active hearing protection with wireless audio connectivity for shooters and outdoor workers who need situational awareness without sacrificing comfort or safety. These are built for extended wear in high-noise environments—whether you're at the range, in the field, or managing noise on the job—with the convenience of Bluetooth pairing so you can stay connected to your phone or music without removing your hearing protection.

Built with a 1200mAh lithium battery that charges via USB-C, the Ultrax 4148 keeps working through long days in the field. The padded headband and soft ear cups are designed for comfort during extended sessions, while the rubberized exterior body gives you durability that holds up to real-world use. At NRR 22dB, these earmuffs deliver serious noise reduction and meet ANSI S3.19 safety standards—meaning you're getting certified hearing protection, not just audio gadgetry.

The Bluetooth 5.3 connectivity lets you pair seamlessly with devices, so you can take calls or stream audio while maintaining ear protection. The Studio Harmonics audio profile aims for clarity in both incoming audio and ambient sound amplification. The foldable design makes these easy to stash in a pack or bag when you're moving between locations, and the included USB-C charging cable means you're ready to go out of the box.

Key Features

• NRR 22dB noise reduction rating for serious hearing protection
• ANSI S3.19 certified for safety compliance
• Bluetooth 5.3 connectivity for wireless audio and calls
• 1200mAh rechargeable lithium battery with USB-C charging
• Studio Harmonics audio technology for sound clarity
• Extra-padded headband and soft ear cups for extended comfort
• Rubberized exterior construction for durability
• Foldable compact design for easy transport and storage

Specifications

Brand	Allen
Model	Ultrax 4148 Bionic
Noise Reduction Rating (NRR)	22 dB
Safety Standard	ANSI S3.19 certified
Bluetooth Version	5.3
Battery	1200mAh 3.7V lithium
Charging	USB-C
Design	Foldable with padded headband and soft ear cups
Exterior Material	Rubberized

Frequently Asked Questions

Are these earmuffs safe for shooting and hunting?

Yes. The Ultrax 4148 is ANSI S3.19 certified hearing protection with an NRR of 22dB, which provides serious noise reduction in high-sound-level environments. You're getting genuine safety standards, not just audio convenience.

How long does the battery last per charge?

The 1200mAh lithium battery provides hours of operation per charge. The exact runtime varies depending on usage (Bluetooth streaming, call time, and volume settings affect battery life). Charging via USB-C is quick, and a charging cable is included.

Can I use these without Bluetooth?

The product is designed as a Bluetooth earmuff with audio connectivity as a core feature. If you need hearing protection without wireless capability, these may not be the best fit—consider a traditional passive earmuff instead.

What's included in the box?

The Ultrax 4148 comes with the earmuffs and a USB-C charging cable. No other accessories are mentioned in the product information provided.