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

- 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

Product description

Open-Back In-Ear Monitor

Fosi Audio IM4

Fosi Audio Im4

fosi audio im4

Fosi Audio IM4 Open-Back IEM Earphones

Fosi Audio IM4 Open-Back IEM Earphones

A new exploration designed for long-lasting comfort in sound and fit.

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

Engineered with an optimized dynamic driver and acoustic tuning for detailed sound (THD<1% ).

A 10mm Be-PU driver for dense mid-Lows, brilliant highs, and a wide, detailed soundstage.

No driver stacking, just pure sound.IM4's single dynamic driver delivers coherent and layered audio.

Dual-chamber control: a 9-port front for balance, a sealed rear for treble extension.

4-strand 392-core 5N OFC silver-plated cable: signal transmission stable gold-plated connectors.

Universal, comfortable fit, engineered from millions of ear scans for a secure and lightweight feel.

The rear chamber is filled with sound-damping material to eliminate resonance peaks and harshness.

Wide-open construction minimizes internal reflections,pressure buildup for an open, natural sound.

Punchy bass, clear mids, and spacious, sibilance-free treble. IM4 is tuned for relaxed listening.

Each earbud weighs only 7g, ensuring pressure-free comfort for long listening.

Black exudes understated elegance, while silver shines with refined brilliance.

Triple-tunable ear tips in three sizes adapt to ears, allowing you to customize the bass response.

Tailor your sound: an aluminum nozzle for warm bass or a brass one for clear mids and treble.

Braided cable with a 3.5mm plug, easily upgrade to 3.5mm or 4.4mm cables for flexible customization.