---
product_id: 487801078
title: "SF3"
brand: "sonicfoam"
price: "S$29"
currency: SGD
in_stock: true
reviews_count: 3
url: https://www.desertcart.sg/products/487801078-sf3
store_origin: SG
region: Singapore
---

# Up to 4 weeks of premium use Eco-friendly degradable memory foam Perfect fit for 3.3-4.3mm earbuds SF3

**Brand:** sonicfoam
**Price:** S$29
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your earbuds with comfort and clarity that lasts!

## Quick Answers

- **What is this?** SF3 by sonicfoam
- **How much does it cost?** S$29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/487801078-sf3)

## Best For

- sonicfoam enthusiasts

## Why This Product

- Trusted sonicfoam brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Size Range:** Available in Small, Medium, and Large to ensure a personalized, secure fit for every ear.
- • **Sustainable Sound Upgrade:** Made from degradable materials, these tips combine eco-consciousness with high performance.
- • **All-Day Comfort, Zero Compromise:** Memory foam expands perfectly to your ear canal, delivering immersive sound without fatigue.
- • **Precision Fit for Ultimate Sound:** Tailored for earbuds with 3.3-4.3mm speaker diameter to maximize audio clarity and comfort.
- • **Bulk Pack for Continuous Excellence:** 20 tips (10 pairs) keep your earbuds fresh and performing at their best, week after week.

## Overview

SONICFOAM SF3 Medium Black earbud tips are precision-engineered memory foam accessories designed for earbuds with 3.3-4.3mm speaker diameters. Each tip expands to provide a secure, comfortable fit that enhances sound clarity and blocks external noise. Made from eco-friendly degradable foam, each pair lasts up to 4 weeks, and the 20-pack ensures you stay fresh and immersive in your audio experience.

## Description

Full description not available

## Features

- A revolution in sound performance, with foam that expands at the perfect rate.
- Enjoy crisp, clear sound and comfort for an all-day immersive experience.
- Memory foam is a degradable material; each pair should last up to 4 weeks.
- Designed specifically for earbuds with a speaker diameter of between 3.3 - 4.3mm
- Available Sizes: Small, Medium, Large | Eartip Dimensions: S=11mm wide / M=12mm wide / L=13mm wide / Height for all sizes 10mm (Dimensions indicated are approximate and may differ slightly)

## Product Details

- **Color:** SF3 - Black
- **Brand:** SONICFOAM
- **Material:** Hypoallergenic Polyurethane Memory Foam
- **Compatible Devices:** with SF3: Various Earphones - (See Compatibility List)
- **Item dimensions L x W x H:** 0.47 x 0.47 x 0.39 inches

## Images

![SF3 - Image 1](https://m.media-amazon.com/images/I/616MYGjW9IL.jpg)
![SF3 - Image 2](https://m.media-amazon.com/images/I/71yhs8l3yHL.jpg)
![SF3 - Image 3](https://m.media-amazon.com/images/I/71rO5+bhqvL.jpg)
![SF3 - Image 4](https://m.media-amazon.com/images/I/813AXJa84qL.jpg)
![SF3 - Image 5](https://m.media-amazon.com/images/I/71V+fsdy5aL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great AirPod Upgrade!!!
*by C***  on July 20, 2025*

This is exactly what I was looking for. A nice comfortable fit. They seal perfectly. Stays in your ear. Very pleasant experience with them in your ear. Makes noise canceling work better with the fitment in your ear. This is exactly what I was looking for. You cannot beat the price for what these things can do. I don’t care that they say they can only last for 4 weeks. You get plenty of them to switch out when they become worn. They come in a nice divided plastic case. It is worth every penny in my opinion for the comfort and sound quality you get. Plus they feel secure and do not fall out. They come with a personalized card asking for feedback and to let them know if you are happy with the fit or not and instructions on changing them and fitting. If they came in orange that would make them perfect!

### ⭐⭐⭐⭐⭐ Game-Changer for Comfort and Sound on AirPods Pro
*by M***N on August 12, 2025*

If you’ve ever had AirPods Pro feel like they’re going to fall out mid-workout or cause ear fatigue after an hour, these memory foam tips are the fix. The fit is secure without being overly tight, and the foam molds to my ear shape for both comfort and a proper seal.⸻Fit & ComfortThe foam compresses easily, so putting them in is quick — squeeze, insert, and they expand for a snug hold. No more adjusting every few minutes. I can wear them for hours without discomfort, and they don’t cause that sore pressure feeling silicone tips sometimes do.⸻Sound & Noise IsolationThe seal dramatically improves bass and overall audio clarity. Noise isolation is noticeably better — not total silence, but outside chatter and low-level background noise are dulled enough to keep me focused without blasting the volume.⸻Durability & MaintenanceThey’ve held their shape well after weeks of daily use. Like all foam tips, they’ll eventually need replacing, but getting 10 pairs in the pack makes that a non-issue. A quick wipe or gentle rinse keeps them clean.⸻Pros:• Comfortable for long sessions• Secure fit, even during workouts or commuting• Improved bass and passive noise isolation• Good value with 10 pairs includedCons:• Foam tips don’t last as long as silicone (but that’s expected)• Need occasional cleaning to stay fresh⸻Final Verdict:If you love your AirPods Pro but want a better seal, richer sound, and all-day comfort, these foam tips are a no-brainer. They make stock silicone tips feel like a downgrade.

### ⭐⭐⭐⭐⭐ 5 stars easy, SF2 & SF0
*by G***. on January 26, 2025*

I am a purchasing consumer posting an honest review of the SF2-MEDIUM which I bought. I use the SF2-MEDIUM with my JBL T110. I receive a second set SF0-SMALL for providing user feedback. I use the SF0-SMALL on my Truthear Zero Red.[1/26/25]Easy 5 stars. I would not hesitate to buy these again.I bought the SF2 size in Medium for my JBLT110. Fit is perfect, they slide on firmly and do not fall off. Sound isolation is improved considerably. They feel like foam-roll hearing protection earplugs.They have much less "suction cup / vacuum" feel on my eardrums.The JBLT110 with factory silicone tips have a very pronounced 5~7 db treble boost above ~6K, that honestly sounds like nails on chalkboard to my ears. These sonicfoam tips help to tame that treble boost for an overall better sonic presentation.I am not new to in-ear monitors and foam roll type ear-tips. My first set of IEMs was a Sure E2C 15+ years ago and I have owned various models from various brands since.... Jays, Sony, Truth ear...etc. What's nice about these Sonicfoam tips is the foam expands slowly in my ears, so I can take my time inserting them. Its NOT like a beat the clock... quick before they re-expand kind of thing.[1/28/25]I received a second set as a favor for providing user feedback. This second set is a SF0-SMALL for my TruthEar Zero Red. The Zero Red is well known for having a HUGE sound output tube, almost 7mm diameter. The SF2 tip inside diameter is way too small. The SF0 fits the Zero Red perfectly. Not too tight and not too loose. They are very similar to the OEM foam tips, except the Soncfoam material expands much slower so I do not have to hurry/rush to insert them. As far as sonics and comfort go they are an exact match to the OEM foams.[2/20/25]After almost a month these foam-roll tips are still going strong. They do show very slight signs of wear, but nothing significant. They are maybe still a solid 95%, and they seem to have plenty of life remaining. I use the SF2-MED with my JBL T110 EVERY night to fall asleep listening to waves and rain forest sounds. I also use them during the day to listen to music and YT vids. I literally roll around and fall sleep ON THEM every night. No soreness or discomfort of any kind paired with the small JBLs. I have equally positive results with the SF0-SMALL on my Truthear Zero red. Although I don't use those nearly as often as the JBL T110.I will post a follow-up to this review if my opinions change.

## Frequently Bought Together

- SONICFOAM Memory Foam Earbud Tips - Premium Noise Isolation, Replacement Foam Earphone Tips, 20 Pack for in Ear Headphone Earbuds (SF3 Medium, Black)
- Shure SE215 PRO Wired Earbuds - Professional Sound Isolating Earphones, Clear Sound & Deep Bass, Single Dynamic MicroDriver, Secure Fit in Ear Monitor, Plus Carrying Case & Fit Kit - Clear (SE215-CL)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-23*