After several months of hands-on testing, the Earmor M300T, has proven to be a versatile and reliable hearing protection across various activities. From shooting sports and mowing the lawn to attending car races and working in the shop. Its blend of advanced technology, comfort, and durability sets it apart in the realm of active hearing protection.
Earmor M300T: Technical Overview
Key Specifications
- Bluetooth 5.4 Connectivity: Seamlessly pairs with mobile devices, allowing for music streaming and call management even in noise-canceling mode.
- Noise Reduction Rating (NRR): 23 dB, effectively safeguarding hearing in high-decibel environments.
- Advanced Sound Management:
- Instantaneous Noise Suppression: Reduces harmful sounds exceeding 82 dB in less than 1 millisecond.
- Ambient Sound Amplification: Enhances situational awareness by amplifying low-level sounds.
- Multiple Pickup Modes: Offers three distinct modes to adapt to varying environmental needs.
- Ergonomic Design:
- Gel Ear Pads: Provide comfort during extended wear and conform to various head shapes.
- Adjustable Headband: Ensures a secure fit for different users.
- Foldable Structure: Facilitates easy storage and transport.
- User-Friendly Controls:
- Integrated Rotary Switch: Combines power and volume adjustments into a single, infinitely variable knob for quick and intuitive control.
- Durability Features:
- IPX5 Waterproof Rating: Offers protection against moisture making it suitable for various weather conditions.
- Auto Shutdown: Conserves battery by turning off after 4 hours of inactivity.
- Power Source: Operates on 2 AAA batteries, ensuring up to 60 hours of continuous use.

Real-World Hearing Protection
Throughout diverse applications, the Earmor M300T has consistently delivered exceptional performance:
- Multiple Active Sound Modes: Several sound modes allow me to fine tune the sounds if I’m hunting, talking, or listening to music.
- Shooting Sports: The rapid noise suppression effectively dampens gunfire, while ambient amplification allows for clear communication on the range.
- Lawn Maintenance: Mowing the yard becomes more enjoyable with the ability to listen to music or podcasts via Bluetooth, without compromising on hearing protection.
- Automotive Events: At car races, the headset filters out excessive engine noise while enabling conversations and media playback.
- Workshop Use: In the shop, it minimizes machinery noise, allowing for focus and communication without removing the headset.
Final Thoughts
The Earmor M300T stands out as a comprehensive solution for those seeking advanced hearing protection without sacrificing comfort or connectivity. Its thoughtful design and robust feature set make it a valuable asset for both professional and recreational activities. Set at a very affordable price I believe Earmor really hit the mark with their M300T offering. The sound quality is fantastic, the music quality is amazing. Transitioning from phone calls, to music, to spoken conversations is a simple click of the very intuitive button. Overall 10/10!
Check out our review of the Earmor Milpro M31/M32 Mark 4 line of hearing protection too!
For more information or to purchase, visit Earmor’s official website.