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Item #:
208364854
Fosi Audio IM4 Open-Back IEM Earphones, in Ear Monitor Wired Earbuds, 10mm Single Dynamic Driver, IEMs for Audiophiles, Gaming and Studio, 3.5mm
Item #:
208364854
BZD 280
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Order now and get it around Saturday, July 25
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Experience high-fidelity sound and all-day comfort with the Fosi Audio IM4, designed for an effortless listening experience.
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What Stands Out
Open-Back Design
The open-back structure offers a natural soundstage and improved acoustic quality, catering perfectly to audiophiles seeking an immersive listening experience.
Detachable Cables
Featuring 3.5mm 2-pin detachable cables, the design allows for easy replacement, enhancing durability and ensuring longevity for daily use by gamers and studio professionals.
Dynamic Driver
Equipped with a 10mm single dynamic driver powered by N52 dual magnets, these earbuds deliver superior sound clarity and richness, ideal for discerning listeners and gamers alike.
Product Details
- High-Fidelity Sound: The IM4 features a premium 10mm beryllium-coated diaphragm single dynamic driver for high resolution and natural three-band transition. The driver utilizes a dual-chamber structure and N52 dual-magnet circuit to deliver natural sound
- Spacious Soundstage: Featuring an open-back design, the IM4 delivers airy, wide-open playback for relaxed, fatigue-free listening. Instruments spread out nicely, and vocals don’t feel boxed in, making long sessions effortless
- Ergonomic & Lightweight: The IM4 is designed using a large ear-shape database to ensure it naturally conforms to your ear. With a smooth full-metal housing and weighing just 7g per bud, it delivers a comfortable, barely-there fit for all-day listening
- Family Design: Featuring Fosi Audio’s signature design language, the shell is crafted from full-aluminum alloy with precision CNC machining and detailed metal sand-blasting for a refined, smooth touch
- Customizable Sound: Includes three sets of ear tips (balanced, bass, deep-bass) of three sizes, and two types of nozzles (brass, aluminium alloy) for tailored tuning. With detachable 2-Pin 0.78 mm connectors, you can swap in your preferred cables also
| Brand Name | Fosi Audio |
| Model Number | IM4-S |
| Model Name | IM4 |
| Built-In Media | User Manual |
| Age Range Description | Adult |
| Number of Items | 1 |
| Manufacturer | FOSI AUDIO |
| Color | Silver |
| Unit Count | 1.0 Count |
| Audio Driver Type | Dynamic Driver |
| Enclosure Material | Metal |
| Specific Uses For Product | Gaming, Studio, Fitness |
| Compatible Devices | Laptops, Desktops, Gaming Consoles, Tablets, Telephones, Smart Speakers, Televisions, Music Production Equipment |
| Water Resistance Level | Not Water Resistant |
| Additional Features | Open-Back Design, Beryllium-Coated Diaphragm, Customizable Sound, Ergonomic and Lightweight |
| Headphone Jack | 3.5 mm Jack |
| Connectivity Technology | Wired |
| Headphones Ear Placement | In Ear |
| Headphone Folding Features | In Ear |
| Earpiece Shape | Bud |
| Brand | Fosi Audio |
| Ear Placement | In Ear |
| Form Factor | In Ear |
| Headphones Jack | 3.5 mm Jack |
| Item Weight | 0.4 lbs (180 grams) |
What's in the box
User Manual
Who Should Buy?
-
Audiophiles
These earphones provide high-quality sound reproduction that serious audio enthusiasts will deeply appreciate and enjoy.
-
Gamers
The immersive soundstage and clarity offered by these IEMs enhances gaming experiences, making it easier to detect in-game sounds.
-
Music Producers
Ideal for studio use, these IEMs allow producers to hear intricate details in recordings during mixing and mastering sessions.
-
Casual Listeners
Individuals who prefer simple earbuds without the need for detailed sound won't benefit from this specialized product.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What type of sound can I expect from the IM4?
Answer: You can expect high-fidelity sound with natural three-band transition and a detailed sound experience. -
Question:
Are the IM4 earphones comfortable for long listening sessions?
Answer: Yes, the IM4 is designed for comfort with an ergonomic fit and lightweight construction, making them ideal for all-day use. -
Question:
Can I customize the sound characteristics of the IM4?
Answer: Absolutely! The IM4 comes with multiple ear tips and nozzles to allow you to tailor the sound to your preferences.
Fosi Audio Earphones IM4-S Editorial Review
No editorial reviews found
Customer Reviews & Ratings
175 customers ratings
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5 Star
81%
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4 Star
10%
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3 Star
6%
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2 Star
1%
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1 Star
2%
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Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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“Accurate delivery timing given”
16 June 2026 · via Trustpilot
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Youcef
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“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
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6/7/2026 · via Trustpilot
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Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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BZD 280
Order now and get it around Saturday, July 25
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Premium 10mm beryllium-coated diaphragm for high-resolution sound.
- Open-back design for airy, spacious soundstage and relaxed listening.
- Ergonomic and lightweight construction for all-day comfort.
- Crafted from full-aluminum alloy with precision CNC machining.
- Customizable sound with various ear tips and nozzles for tailored tuning.
- Detachable connectors for the flexibility to swap cables.
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Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.