Hematoma System Ear Plugs Investors & Partners About
Product 02 · Custom Moldable Magnetic Ear Plugs

A custom ear plug that molds at home and stays put.

A heat-moldable plug that conforms to the exact shape of the ear canal, with magnetic attachment that prevents dislodgement during activity. Watertight seal and consistent sound attenuation. No impressions, no lab, no audiology visit.

Watertight seal Sound attenuation Magnetic retention Molds at home Child-friendly
How it works Investor overview
EarArmor custom moldable ear plug prototypes
For children with ear tubes

An open tube is a direct path for water. Close it.

Ear tube placement is the most common surgery in the US: 700,000 procedures a year. Every one leaves a direct route for water into the middle ear, and reliable child-sized protection is hard to find: off-the-shelf plugs don't fit small ears, and professionally molded ones cost $75–$500 per ear and are outgrown in a season.

EarArmor plugs mold to a child's ear in minutes at home, designed by a pediatric ENT who places these tubes. A surgeon could even mold the plugs in the OR during the tube procedure itself.

Molded plug sealing the ear canal, anatomy labeled
How it works

No impressions. No lab. No office visit.

A heat-sensitive EVA blank softens in hot water, molds to the individual ear, and sets into a personalized, reusable plug, held in place by the same magnetic technology behind our hematoma system.

Softening the plug blank in a cup of hot water
01
Soften the blank

A short soak in hot water makes the EVA blank moldable.

Molded EarArmor plug worn in the ear
02
Press it in

Push gently into the outer ear and canal opening. It contours to the individual geometry.

Pressing the softened plug to mold it
03
Set and remoldable

It cools into a custom plug: watertight, magnetically secured, and remoldable as an ear grows.

Who it's for

One-size-fits-“most” doesn't fit anyone.

Standard plugs don't match the unique geometry of each ear canal: they leak water, attenuate sound inconsistently, and fall out mid-activity. A custom fit plus magnetic retention fixes all three.

Swimmers & surfers

Repeated water exposure drives swimmer's ear and, in cold water, surfer's ear. Magnetic retention keeps the seal through waves and laps. No other ear plug offers it.

Kids with ear tubes

A watertight, child-sized seal molded at home at a fraction of the cost of professionally molded plugs, and remoldable as they grow.

Sleep & quiet: the comfort version

A planned magnet-free variant in soft EVA: the comfort of silicone plugs, but reusable and with no risk of dislodgement into the canal.

The advantage

No plug on the market combines all three.

Custom molding. Water and sound protection. Magnetic retention. Each competitor offers at most one or two, and professionally molded plugs cost $75–$500 per ear.

Silicone putty plugs
Single-use; can break off in the ear canal
Foam plugs
No water protection
Decibullz
Heat-molded, but sound-only: no water protection, no attachment system
SurfEars
Water-only: not custom moldable, not magnetically attached
Professional custom molds
Fit well, but need audiology visits and impressions at $75–$500 per ear
EarArmor
Custom fit at home + water and sound protection + magnetic retention
Status

In initial prototyping. A 700,000-procedure-a-year market waiting for a better answer.

We're seeking co-development, licensing, and investment partners to bring the plug system to market alongside the hematoma device.

Investors & Partners Contact us
EarArmor

Non-invasive, custom-moldable devices for ear protection and repair. Founded by an ENT surgeon.

Products
Moldable Magnet System Custom Moldable Ear Plugs
Company
Investors & Partners About & Team Contact
Direct
solomon-donald@cooperhealth.edu
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