Experience premium sound performance with the Fosi Audio IM4 HiFi Wired Earphones, designed for audiophiles, gamers, music enthusiasts, and professionals who demand accurate and immersive audio. These Fosi Audio IM4 HiFi Wired Earphones combine advanced driver technology, open-back acoustic design, and premium materials to deliver a natural, detailed, and powerful listening experience.

The Fosi Audio IM4 HiFi Wired Earphones feature a dual-magnet dual-cavity dynamic driver system engineered to provide exceptional resolution, high impulse response, and precise sound reproduction. Whether you are enjoying music, monitoring audio, gaming, or watching movies, these Fosi Audio IM4 HiFi Wired Earphones deliver balanced sound with deep bass, clear vocals, and detailed high frequencies.

Designed with an open-back acoustic structure, the Fosi Audio IM4 HiFi Wired Earphones create a wider and more natural soundstage compared to traditional in-ear headphones. This innovative design improves airflow, reduces listening fatigue, and provides a more realistic audio experience for long listening sessions.

Built with a premium CNC aluminum alloy housing, the Fosi Audio IM4 HiFi Wired Earphones offer excellent durability, lightweight comfort, and a refined appearance. The ergonomic design ensures a secure fit, while the lightweight construction makes these Fosi Audio IM4 HiFi Wired Earphones comfortable for extended daily use.

Key Features

• Fosi Audio IM4 HiFi Wired Earphones
• Dual-Magnet Dual-Cavity Dynamic Driver Technology
• Open-Back Design for Natural and Spacious Sound
• Premium IEM Headphones for Music Monitoring
• Balanced Sound Tuning for Multiple Music Genres
• High-Resolution Audio Performance
• CNC Aluminum Alloy Housing for Durability
• Lightweight Ergonomic In-Ear Design
• Detachable Silver-Plated Copper Cable
• 2-Pin 0.78mm Connector Design
• 3.5mm Gold-Plated Audio Plug
• Ideal for Gaming, Music Production, DJ, Office, and HiFi Listening

Professional Sound Performance

The Fosi Audio IM4 HiFi Wired Earphones are carefully tuned to provide a balanced audio signature suitable for different listening preferences. From powerful bass lines to detailed vocals and smooth treble, these Fosi Audio IM4 HiFi Wired Earphones deliver consistent performance across genres including pop, rock, classical, electronic music, and gaming audio.

With a 10mm N52 dual-magnet dual-cavity dynamic driver and a beryllium-coated PU diaphragm, the Fosi Audio IM4 HiFi Wired Earphones provide excellent clarity, fast response, and improved detail retrieval for a true HiFi listening experience.

Premium Build & Comfortable Design

Created for everyday comfort, the Fosi Audio IM4 HiFi Wired Earphones feature a CNC-machined 6063 aluminum alloy shell that provides a premium feel while maintaining durability. Each earbud weighs approximately 7g, allowing comfortable use during long music sessions, gaming, or professional monitoring.

The detachable cable design makes the Fosi Audio IM4 HiFi Wired Earphones convenient to maintain and upgrade, while the high-quality silver-plated copper cable ensures reliable signal transmission and long-lasting performance.

Technical Specifications

• Brand: Fosi Audio
• Model: IM4
• Type: HiFi Wired Earphones / IEM Headphones
• Driver Type: Dual-Magnet Dual-Cavity Dynamic Driver
• Driver Size: 10mm N52 Dynamic Driver
• Diaphragm: PU Beryllium-Coated Diaphragm
• Impedance: 21Ω
• Sensitivity: 109dB/mW
• Frequency Response: 20Hz–20kHz
• Connector: 2-Pin 0.78mm
• Audio Jack: 3.5mm Gold-Plated Plug
• Cable: 392-Strand 5N OFC Silver-Plated Copper Cable
• Housing Material: 6063 CNC Aluminum Alloy
• Weight: Approx. 7g per earbud

Perfect For

The Fosi Audio IM4 HiFi Wired Earphones are ideal for:

• Audiophile music listening
• Gaming and immersive sound
• Studio monitoring
• DJ and professional audio use
• Office and everyday entertainment
• Mobile music playback

Upgrade Your Audio Experience

Discover professional-level sound with the Fosi Audio IM4 HiFi Wired Earphones. Combining advanced driver technology, premium CNC aluminum construction, and a comfortable open-back design, these Fosi Audio IM4 HiFi Wired Earphones provide the clarity, detail, and immersive sound experience that music lovers and professionals expect.

Order the Fosi Audio IM4 HiFi Wired Earphones today and enjoy a new level of HiFi audio performance.