"Hear Everything. Block Whats Harmful."
The Walker's Razor Slim Electronic Ear Muff is the gold standard for shooters who need to protect their hearing without going deaf to their surroundings. Sound Activated Compression (SAC) kicks in within 0.02 seconds — faster than the blink of an eye — collapsing harmful gunshot noise to safe levels while two hi-gain omnidirectional HD microphones keep ambient sound amplified and clear. The ultra-low-profile ear cups sit flat against your head, clearing the stock weld on a rifle and running clean under most hearing protection-compatible helmets and headsets. NRR 23dB rated, independently adjustable per ear, audio input jack for phone or radio, and up to 40 hours of battery life on 2 AAA batteries.
Key Features
- NRR 23dB Noise Reduction — Certified noise reduction rating protects against hazardous noise levels at the range, on the job site, and in the field
- Sound Activated Compression (SAC) — 0.02 Second Reaction Time — Collapses dangerous impulse noise (gunshots, blasts) to safe levels in under one-fiftieth of a second while maintaining ambient amplification between shots
- 2 Hi-Gain Omnidirectional HD Microphones — Pick up sound from all directions and broadcast it through full dynamic range HD speakers — natural, clear, situationally aware hearing
- Ultra Low-Profile Ear Cups — Slim design clears rifle stock weld and runs under most helmet systems — no interference with cheek weld or mounted headsets
- Independent Volume Controls (Per Ear) — Recessed knobs on each cup allow individual adjustment — compensates for minor hearing difference between ears
- Audio Input Jack — 3.5mm jack converts these muffs into hearing-protected headphones — plug in a phone, radio, or scanner and listen without removing protection
- Sound Dampening Composite Housing — Rubberized coating protects interior electronics and provides additional passive noise attenuation beyond the rated NRR
- Folding Compact Design — Folds flat for storage in a range bag, pack, or cargo pocket — takes up minimal space when not in use
- Padded Metal Wire Headband — Sturdy wire frame with foam padding provides all-day comfort without fatigue
- External Battery Door — Easy-access battery replacement without tools — operates on 2 AAA batteries (included)
- 40-Hour Battery Life — Up to 40 hours on high volume, up to 80 hours on low volume — built for extended range days and field use
Frequently Asked Questions
What does NRR 23dB actually mean in practical terms?
NRR (Noise Reduction Rating) measures how much a hearing protector reduces noise exposure in decibels. An NRR of 23dB means these muffs reduce the sound level reaching your ears by approximately 23 decibels. A standard pistol shot at the range produces around 160dB — well above the 85dB threshold where hearing damage begins. NRR 23 brings that exposure to a safe level. For reference, the minimum recommended NRR for indoor range use is typically 25dB; pairing these muffs with foam earplugs underneath boosts total protection significantly if you shoot indoors frequently.
What is Sound Activated Compression and how is 0.02 seconds fast enough?
Sound Activated Compression (SAC) is the electronic system that monitors incoming audio and instantaneously cuts amplification when a harmful impulse noise is detected. The 0.02 second (20 millisecond) reaction time means the system shuts down before the full energy of a gunshot reaches your ears. Human hearing damage from impulse noise is cumulative and occurs across the full duration of the sound wave — SAC intercepts the peak before damage is done, then restores ambient amplification immediately after the shot. This is what separates electronic muffs from passive muffs — you get protection during the shot and full ambient hearing between shots.
Can I use the audio input jack with a radio or scanner?
Yes. The 3.5mm audio input jack accepts a standard headphone plug from a phone, radio, or scanner. Audio from the connected device plays through the muff's HD speakers alongside the amplified ambient sound — you hear both simultaneously. This makes the Razor Slim functional as a hearing-protected communications headset for range officers, security personnel, or anyone who needs situational audio while monitoring a radio channel.
Can I adjust one ear independently from the other?
Yes. Each ear cup has its own recessed volume control knob, allowing you to set different amplification levels per ear. This is particularly useful for shooters who have developed asymmetrical hearing loss — a common condition in military veterans and long-time shooters — allowing you to compensate and restore balanced situational awareness.
How long do the batteries last and how do I replace them?
The muffs run approximately 40 hours at high volume and up to 80 hours at low volume on 2 standard AAA batteries. The battery door is accessible from the exterior of each cup without tools — open, swap, close. Two AAA batteries are included in the box. Standard AAA batteries from any convenience store or tactical supply will work as replacements.