Earbud Memory Foam Tips Replacement Eartips S/M/L - Noise Isolation

In this review the reviewer focuses on whether these memory foam replacement eartips are worth buying for users who want improved comfort and noise isolation. The BLLQ Foam Black set is best for people who own earbuds with an inner nozzle diameter around 3.8mm to 4.2mm and need a simple way to refresh fit without replacing the headphones. The single biggest reason to buy is the high quality memory foam, which compresses for a secure in-ear seal and expands to offer noticeable passive noise reduction compared with stock silicone tips.

Key Features

• Memory foam material: The foam conforms to the ear canal to increase comfort on long listening sessions and reduce external noise.
• Three sizes included: S, M and L sizes are supplied so users can find the best seal for their ear shape and get a more reliable fit.
• Compatibility: Designed to fit in-ear earbuds with a 3.8mm to 4.2mm inner hole, including many Sony models and several Bluetooth earbuds.
• Charge case friendly: The shape and size are intended to fit back into the charging cases of compatible models such as the WF-1000XM4 and Powerbeats Pro.
• Protective plastic box: A small plastic storage box is included to keep spare tips organized and prevent them from being crushed or lost.

Who It's For

These foam eartips are ideal for listeners who find stock silicone tips too slippery or thin on noise isolation and want a warmer, more secure in-ear seal. They work well for commuters, light travelers, and anyone who wears earbuds for extended periods and prioritizes comfort and passive noise blocking.

They are not for users whose earbuds have an unusually large or tiny nozzle outside the 3.8mm to 4.2mm range, or for those who need water resistant tips for heavy workouts; silicone sport tips or manufacturer-specific replacements may be a better choice in those cases.

Pros & Cons

Pros

• Comfortable memory foam provides a snug seal that improves bass response and blocks ambient noise.
• Multiple sizes in the pack let most users find an effective fit without extra purchases.
• Plastic storage box keeps spare tips protected and easy to carry.
• Fits common earbuds and is reported by customers to fit in cases for some large-name models.

Cons

• Not fully sweatproof, so users who need sport-grade moisture resistance should consider silicone alternatives.
• May require brief adjustment when inserting to achieve the best seal, which some users may find fiddly.

Specifications

Brand	BLLQ
Material	Memory foam
Compatibility inner hole	Approximately 3.8mm - 4.2mm
Included pieces	12 PCS (6 pairs) S/M/L, 2 pairs per size
Color	Memory Foam Black
Packaging	Plastic storage box included

Our Verdict

This replacement set is a practical, low-cost way to boost comfort and passive noise isolation for compatible in-ear headphones. Buyers who have earbuds with a 3.8mm to 4.2mm nozzle and want a softer, more secure fit will find good value here, especially because the kit includes three sizes and a storage box.

Frequently Asked Questions

Will these fit my Sony earbuds?
They are designed for Sony models with an inner nozzle near 3.8mm to 4.2mm, including many WF and XBA series; check your earbud nozzle size for best results.

Are the tips washable?
Foam tips can be wiped gently but should not be soaked; follow gentle cleaning and allow full drying before reuse to maintain foam integrity.

Do they fit back into a charging case?
Many users report the set fits in charging cases for models like WF-1000XM4 and Powerbeats Pro, but fit varies by case design so verify with your specific case.