The Caldwell E-Max is a low-profile, behind-the-head electronic hearing protector designed for shotgun and action-shooting use. It amplifies ambient sounds for communication and situational awareness while limiting exposure to harmful noise impulses. Stereo microphones and an adjustable volume control help the user localize and manage sound in dynamic environments.
Key Specifications
- The hearing protector has an NRR of 21 dB.
- The circuitry amplifies ambient sound up to 20 dB for communication and range commands.
- The speakers momentarily shut off when sound exceeds 85 dB to limit exposure.
- The design is a low-profile, behind-the-head style optimized for shotgun and action shooters.
- Two microphones—one in each cup—provide stereo sound for improved localization.
- Features an adjustable volume control on the right ear cup.
- Includes an audio input jack for external audio sources.
- Cushioned foam ear cups provide comfort while maintaining a low profile.
- A power indicator light displays operational status.
- Finished in green.
The E-Max combines straightforward electronic functionality with a compact profile to provide situational awareness and hearing protection for range and field use. Its stereo microphones, volume control, and audio input make it a practical choice for shooters who need reliable attenuation without sacrificing communication and localization capabilities.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




