We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Clear plastic jar with flip lid holding fifty pairs of beige polyurethane foam earplugs

Mack's Ultra Foam Earplugs 50 Pair 33dB NRR Model 9250

SKU CH-SDJD-FPN6M

Fifty pairs of disposable polyurethane-foam plugs rated at 33 decibels NRR for sleeping, study or loud environments

  • Signal-to-noise ratio33 decibels
  • Wearing styleFoam
  • Cord lengthFoam
  • Noise cancellation33 decibels, false, Pair
  • Wireless technologyIR
  • Product typeFoam
  • 33 dB NRR blocks hazardous noise for safer hearing
  • 50 pairs in one jar supply long-term daily use
  • Super low-pressure foam expands slowly for all-day comfort
  • Doctor-recommended brand trusted for sleep and snoring relief
  • Made in USA with safety-sealed jar and flip-top dispensing

What you get

This pack contains 50 pairs of disposable foam earplugs in a safety-sealed jar. Each pair carries a Noise Reduction Rating of 33 decibels and a matching Single Number Rating. The beige polyurethane foam is made in the USA and expands slowly for a low-pressure fit.

Who these suit and who they don't

Sleepers, students, concert-goers, motorcyclists and anyone needing high attenuation for occasional use will find them effective. They are not for users who need reusable plugs, a corded design, electronic noise cancellation or a smaller quantity than 50 pairs.

Behaviour during extended wear

The slow-release foam maintains its seal over long periods without increasing pressure in the ear canal. Because the plugs are disposable, hygiene stays consistent across multiple sessions and there is no degradation from cleaning or storage.

How it compares

Measured against everything we stock in Earbuds & Over-Ear Headphones, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 70% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameMack's
Product lineFoam
Model name9250
Part number9250
Product typeFoam
Product colorBeige
Audio & video
Signal-to-noise ratio33 decibels
Wearing styleFoam
Noise cancellation33 decibels, false, Pair
Connectivity
Wireless technologyIR
Power
Power supplyNo
Battery packNo
Built-in batteryNo
Size & build
Cord lengthFoam
Product weight0.045 kg
Compatibility
Compatible withHearing Protection, Noise Protection
In the box
In the box50 pair (Pack of 1)

Questions about this item

Do these earplugs need any power source or device to function?

No, they operate without batteries or external power — just compress the polyurethane foam and insert for immediate noise reduction.

Can I use them with my existing hearing protection headband or earmuffs?

Yes, the low-profile beige foam pairs fit under most over-the-ear muffs or headbands without breaking the seal of either device.

How do I confirm each pair is sealing correctly after insertion?

Hold the plug in place until the slow-release foam fully expands; a proper seal feels snug and reduces ambient sound by the rated 33 decibels.

More in Earbuds & Over-Ear Headphones

Similar items