Fosi Audio IM4 Open-Back HiFi IEM Earphones, 10mm Beryllium Driver, N52 Dual Magnet & Dual Chamber, 2-Pin Detachable Cable 3.5/4.4mm Balanced, Custom Tuning, Ergonomic Fit for Music/Gaming (Black)
Original price was: ₹11,599.00.₹10,599.00Current price is: ₹10,599.00.
Product Description
Open-Back In-Ear Monitor Fosi Audio IM4
A new exploration designed for long-lasting comfort in sound and fit.
Fosi Audio Im4
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. IM4 product video Merchant Video
Fosi Audio IM4 Open-Back IEM Earphones
Fosi Audio IM4 Open-Back IEM Earphones, in Ear Monitor Wired Earbuds, 10mm Single Dynamic Driver, IEMs for Audiophiles, Gaming and Studio, 3.5mm 2-Pin 0.78mm Detachable Cables, N52 Dual Magnets
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. IM4 Product video Merchant Video
High-Performance Dynamic Unit
Engineered with an optimized dynamic driver and acoustic tuning for detailed sound (THD<1% ).
Rich Sound Details
A 10mm Be-PU driver for dense mid-Lows, brilliant highs, and a wide, detailed soundstage.
Hi-performance Single Driver, Pure Excellence
No driver stacking, just pure sound.IM4’s single dynamic driver delivers coherent and layered audio.
Perfect Balance of Acoustic Space
Dual-chamber control: a 9-port front for balance, a sealed rear for treble extension.
Ensure pure Signal Transmission
4-strand 392-core 5N OFC silver-plated cable: signal transmission stable gold-plated connectors.
1 Dual-Magnet Dual-Cavity
2 Be-PU Diaphragm
3 Single Dynamic Driver
4 Dual-Chamber Design
5 5N OFC Cable
Ergonomic Build for Comfort
Universal, comfortable fit, engineered from millions of ear scans for a secure and lightweight feel
Acoustic Damping for Pure Sound
The rear chamber is filled with sound-damping material to eliminate resonance peaks and harshness.
Pocket-sized, Expansive Soundscape.
Wide-open construction minimizes internal reflections,pressure buildup for an open, natural sound.
Balanced Tuning Across Genres
Punchy bass, clear mids, and spacious, sibilance-free treble. IM4 is tuned for relaxed listening.
1 Ergonomic Design
2 Acoustic Damping
3 Open-Back Design
4 Balanced Tuning
5
Two Bold Finishes
Black exudes understated elegance, while silver shines with refined brilliance.
Explore More Sound Styles
Triple-tunable ear tips in three sizes adapt to ears, allowing you to customize the bass response.
Aluminum Alloy Conduit and Brass Nozzle
Tailor your sound: an aluminum nozzle for warm bass or a brass one for clear mids and treble.
2-Pin 0.78mm Connectors
Braided cable with a 3.5mm plug, easily upgrade to 3.5mm or 4.4mm cables for flexible customization
1 Elegant Colors
2 Swappable Ear Tips
3 Tuning Nozzles
4 Detachable Cable
Dual Magnet & Dual Chamber for Hi-Fi Sound: Experience audiophile clarity. Our IEM earphones feature an N52 dual magnet for powerful control and a dual-chamber design for balanced sound,The 10mm beryllium driver delivers wide soundstage and crisp details.
Balanced & Fatigue-Free Tuning:The open-back design and acoustic damping wool reduce resonance and harshness, creating a relaxed, wide sound. The hifi earbuds are expertly tuned for balanced bass, mids, and treble, making them ideal for audiophiles.
Ergonomic & Lightweight Comfort: Designed for all-day comfort. Its housings feature a smooth metal finish that’s hypoallergenic and pleasant to the touch. With each earpiece weighing only 7g, these are among the most comfortable in-ear monitors for extended wear.
Premium CNC Aluminum crafts:Show Excellent build quality and minimalist aesthetics. The shell is precision-machined from a block of aluminum. The unique orange metal grille and logo add a distinctive, setting IEMs apart in both style and substance.
Customizable Sound & Detachable Cable:Tailor your audio experience. The IEMs set includes 3 types of eartips (Bass, Deep Bass, Balanced) and two sound nozzles (Brass, Aluminum) to fine-tune bass and treble. The 2-pin 0.78mm detachable cable to 3.5/4.4mm.
Price: ₹11,599 - ₹10,599.00
(as of May 31, 2026 11:33:05 UTC – Details)
Product Description
Open-Back In-Ear Monitor Fosi Audio IM4
A new exploration designed for long-lasting comfort in sound and fit.
Fosi Audio Im4
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. IM4 product video Merchant Video
Fosi Audio IM4 Open-Back IEM Earphones
Fosi Audio IM4 Open-Back IEM Earphones, in Ear Monitor Wired Earbuds, 10mm Single Dynamic Driver, IEMs for Audiophiles, Gaming and Studio, 3.5mm 2-Pin 0.78mm Detachable Cables, N52 Dual Magnets
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. IM4 Product video Merchant Video
High-Performance Dynamic Unit
Engineered with an optimized dynamic driver and acoustic tuning for detailed sound (THD<1% ).
Rich Sound Details
A 10mm Be-PU driver for dense mid-Lows, brilliant highs, and a wide, detailed soundstage.
Hi-performance Single Driver, Pure Excellence
No driver stacking, just pure sound.IM4’s single dynamic driver delivers coherent and layered audio.
Perfect Balance of Acoustic Space
Dual-chamber control: a 9-port front for balance, a sealed rear for treble extension.
Ensure pure Signal Transmission
4-strand 392-core 5N OFC silver-plated cable: signal transmission stable gold-plated connectors.
1 Dual-Magnet Dual-Cavity
2 Be-PU Diaphragm
3 Single Dynamic Driver
4 Dual-Chamber Design
5 5N OFC Cable
Ergonomic Build for Comfort
Universal, comfortable fit, engineered from millions of ear scans for a secure and lightweight feel
Acoustic Damping for Pure Sound
The rear chamber is filled with sound-damping material to eliminate resonance peaks and harshness.
Pocket-sized, Expansive Soundscape.
Wide-open construction minimizes internal reflections,pressure buildup for an open, natural sound.
Balanced Tuning Across Genres
Punchy bass, clear mids, and spacious, sibilance-free treble. IM4 is tuned for relaxed listening.
1 Ergonomic Design
2 Acoustic Damping
3 Open-Back Design
4 Balanced Tuning
5
Two Bold Finishes
Black exudes understated elegance, while silver shines with refined brilliance.
Explore More Sound Styles
Triple-tunable ear tips in three sizes adapt to ears, allowing you to customize the bass response.
Aluminum Alloy Conduit and Brass Nozzle
Tailor your sound: an aluminum nozzle for warm bass or a brass one for clear mids and treble.
2-Pin 0.78mm Connectors
Braided cable with a 3.5mm plug, easily upgrade to 3.5mm or 4.4mm cables for flexible customization
1 Elegant Colors
2 Swappable Ear Tips
3 Tuning Nozzles
4 Detachable Cable
Dual Magnet & Dual Chamber for Hi-Fi Sound: Experience audiophile clarity. Our IEM earphones feature an N52 dual magnet for powerful control and a dual-chamber design for balanced sound,The 10mm beryllium driver delivers wide soundstage and crisp details.
Balanced & Fatigue-Free Tuning:The open-back design and acoustic damping wool reduce resonance and harshness, creating a relaxed, wide sound. The hifi earbuds are expertly tuned for balanced bass, mids, and treble, making them ideal for audiophiles.
Ergonomic & Lightweight Comfort: Designed for all-day comfort. Its housings feature a smooth metal finish that’s hypoallergenic and pleasant to the touch. With each earpiece weighing only 7g, these are among the most comfortable in-ear monitors for extended wear.
Premium CNC Aluminum crafts:Show Excellent build quality and minimalist aesthetics. The shell is precision-machined from a block of aluminum. The unique orange metal grille and logo add a distinctive, setting IEMs apart in both style and substance.
Customizable Sound & Detachable Cable:Tailor your audio experience. The IEMs set includes 3 types of eartips (Bass, Deep Bass, Balanced) and two sound nozzles (Brass, Aluminum) to fine-tune bass and treble. The 2-pin 0.78mm detachable cable to 3.5/4.4mm.
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Original price was: ₹11,599.00.₹10,599.00Current price is: ₹10,599.00.
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