Free shipping · 60-day guarantee
Foam plugs make you choose. Hear everything or hear nothing.
You know the routine. Foam plugs go in. Now you can't hear the person next to you. You pull one out. Then both. Then they sit in your pocket the rest of the day. Earmuffs do the same thing. Hot. Heavy. Can't hear anything around you. And AirPods? They trick your brain into thinking it's quieter. The sound waves still hit your eardrums at full force.
- ✗ Foam plugs block everything so you end up taking them out
- ✗ Earmuffs kill your awareness and give you headaches by lunch
- ✗ ANC earbuds don't actually block the sounds that do damage
Free shipping · 60-day guarantee
These earbuds don't block everything. They sort everything.
Every sound that enters the MK One gets scanned. If it's under 85 decibels, it passes through amplified and clear. Voices. Your surroundings. Everything you need to stay aware of. If it's above 85 decibels, it gets blocked before it reaches your eardrum. That's the line where damage starts. The MK One knows where it is. 27 to 31 dB NRR rated.
- ✓ Safe sounds pass through amplified and clear
- ✓ Dangerous sounds above 85 dB get blocked
- ✓ 27-31 dB NRR rated
Free shipping · 60-day guarantee
You've been buying three products because nobody made one that did all three.
You used to need foam plugs for the noise. A separate pair of earbuds for music and calls. And you still couldn't hear what was going on around you. The MK One does all three. Blocks the loud. Lets the safe through. Streams your music. Takes your calls. Thirty-hour battery with the case. Put them in Monday morning and they'll still be going.
- ✓ Bluetooth for music, podcasts, and phone calls built in
- ✓ Pass-through keeps you aware of your surroundings
- ✓ Thirty-hour battery life with the charging case
Free shipping · 60-day guarantee
Caliber MK1 Earbuds
Caliber MK1 Earbuds
ALMOST SOLD OUT - 22 Sets Left
Free Shipping
Fast & FREE Shipping
30 Day Guarantee
Amplified Awareness
27-31 dB NRR
30-Hour Battery
Couldn't load pickup availability
30 Day Money Back Guarantee
Order in and Get delivery By
How does the noise cancellation work?
How does the noise cancellation work?
The MK One scans every sound that enters your ear in real time. Anything under 85 decibels passes through amplified and clear. Voices, footsteps, everything around you. Anything above 85 decibels gets blocked before it hits your eardrum. 27 to 31 dB NRR rated.
How long does the battery last?
How long does the battery last?
Thirty hours with the charging case. USB-C fast charging. Put them in Monday morning and you won't think about battery all day.
Can I still hear people talking with them in?
Can I still hear people talking with them in?
Yes. That's the whole point. Safe sounds come through amplified and clearer than your bare ears. You can hold a conversation, hear warnings, and stay aware of everything around you while the dangerous noise gets cut.
Whats included in the box?
Whats included in the box?
You get the earbuds, rugged charging case, USB-C cable, three sizes of ear tips (S/M/L), and a user manual. Everything you need to start using them immediately.
How does shipping work?
How does shipping work?
Orders ship within one to three business days. You'll get a tracking number as soon as it's on the way. If they don't work for you, the 30 day money back guarantee has you covered.
Risk-free
30-Day Money Back Guarantee
Not happy? We'll refund you. No questions asked.
Inside the MK One
27-31 dB NRR
Blocks the sounds that do damage. Everything under 85 decibels still comes through to you clear.
Amplified Awareness
Pick up voices, footsteps, and movement from distances you never could before. Better than bare ears.
30-Hour Battery
One charge with the case gets you through the whole day. USB-C fast charging when you need more.
Bluetooth Built In
Stream music, podcasts, and take your calls without swapping to a different pair. One earbud does it all.
Don't Take Our Word.
Thousands of people use the MK1 earbuds from hunting to working in construction.
3 Easy Steps
How to use
1. Charge and Pair
Charge the case with USB-C. Open the lid, pop in the earbuds, and they pair to your phone automatically.
2. Find Your Fit
Pick from three ear tip sizes. Small, medium, or large. Get a tight seal and they stay put all day.
3. Select Your Mode and Go
One click to switch between modes. Hear everything around you. Block what does damage. That simple.
Frequently Asked Questions
How do the MK One earbuds block loud sounds but still let me hear everything else?
Every sound that enters the MK One gets scanned. If it's under 85 decibels, it passes through amplified and clear. Voices. Footsteps. Everything around you. If it's above 85 decibels, it gets blocked before it reaches your eardrum. You stay fully aware while the dangerous noise gets cut. 27 to 31 dB NRR rated.
Will these fit comfortably for a full day?
Yes. The MK One comes with three ear tip sizes. Small, medium, and large. Pick the one that seals and they stay locked in all day. Built for guys who wear them from morning to night.
How long does the battery last?
Thirty hours with the charging case. That's enough to get through a full day and then some without thinking about it. The case charges with USB-C.
Can I use these in rain, sweat, or bad weather?
The MK One is built for real conditions. Rain, sweat, dust. They can handle it.
Will these get in the way of a rifle stock or cheek weld?
No. The MK One sits flush in your ear. Low profile. No bulk sticking out. You get a clean cheek weld every time.
Can I listen to music and take phone calls with these?
Yes. Bluetooth is built in. Stream music, podcasts, or take calls without switching to a different pair. Pass-through stays active so you still hear everything around you while you listen.
Are these complicated to use?
No. Open the case, put them in, and they pair to your phone automatically. One button switches between modes. That's it.
What can I use these for?
Anything loud. The range. The job site. The deer blind. Mowing the lawn. Anywhere you want to block the damaging noise but still hear what's going on around you.
How long does shipping take?
Orders ship within one to three business days. You'll get a tracking number as soon as it's on the way.
What if they don't work for me?
You have 30 days to try them. If you don't like them, send them back for a full refund. No hassle. And if they ever break or get damaged, the lifetime guarantee covers a free replacement.