Fosi Audio IM4 Open-Back IEM Wired Earbuds, HiFi Dynamic Earphones Black

From the brand

Guided by our mission of “Redefining HiFi with Unmatched Value”, Fosi Audio continues to fuel its passion for the Hifi industry, ramp up R&D efforts, and co-create new HiFi equipment with users. We pledge to bring more amazing Hifi gear with high value for the price, innovative design, cutting-edge technology, and premium quality, to audiophiles worldwide.

DAC & Amplifiers

Headphone Amplifiers

DAC

DAC

Bluetooth headphone amp N3

Headphone Amplifier PH04

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. Please wear it by hanging it behind the ears.
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. Note: The open-back design features an open-mesh structure on the earphone’s back that allows air and sound to move freely in and out of the ears.
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.