Description
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.
Specifications:
Shell Material: 6063 CNC Aluminum Alloy
Driver Unit: 10 mm N52 Dual-Magnet Dual-Cavity Dynamic Driver
Diaphragm: PU Beryllium-coated Diaphragm
Sensitivity: 109dB
Impedance: 21Ω
Frequency Response: 20Hz–20kHz
Cable: 4-core 392-strand 5N OFC Silver-plated Copper Cable
Connector: 2-PIN 0.78mm
Audio Jack: 3.5 mm Gold-plated Plug
Weight (per earbud): 7g ±0.5g
Weight (incl. cable): 38g ±1g
What‘s in the box？
Fosi Audio IM4 Earphones
3.5mm Cable
Carrying Pouch
User Manual
Quick Guide
Brass Nozzle
Balanced Ear Tips
Bass Ear Tips
Deep Bass Ear Tips
