SPECIFICATIONS
Active Noise-Cancellation: No
Brand Name: Fosi Audio
Category: Earphones & Headphones
Certification: CE
Communication: Wired
Control Button: No
Feature1: IEM Earphone
Feature2: In ear earphone
Feature3: Gaming earphone
Feature4: Hifi Headphone
Features: Detachable Cable
Frequency Response Range: 20 - 20000
Function: Monitor Headphone,for Video Game,Common Headphone,For Mobile Phone,HiFi Headphone,For Office,For DJ
Headphone Pads Material: Silicone
High-concerned chemical: None
Impedance Range: up to 32 Ω
Is wireless: No
Material: Metal
Number Of Drivers: 2
Origin: Mainland China
Package List: User Manual,Replaceable Pads Set,Detachable Audio Cable
Plug Type: Line Type
Sensitivity: 109
Sound Isolating: Yes
Style: Wired in-ear headphones
Total Harmonic Distortion: 3
Vocalism Principle: Dynamic
Voice assistant built-in: no
Volume Control: Yes
Waterproof: No
Weight[g]: 200
Wireless Type: Bluetooth

Feature
1. Dual-Magnet Dual-Cavity Driver The Fosi Audio IM4 features a dual-magnet dual-cavity driver that delivers great resolution and high impulse fidelity. This design ensures the purity of sound and a wide dynamic range, allowing you to enjoy the clarity and depth of every note. 2. Open-Back Design The open-back design of the IM4 creates an open, natural soundstage, ensuring that you won't experience fatigue even during extended listening sessions. This design makes music sound more natural and provides a more comfortable listening experience. 3. Balanced Tuning across Genres Carefully tuned for long listening sessions with natural sound across various music genres, the IM4 delivers a natural sound that keeps your ears comfortable for hours. Whether it's pop, rock, or classical, it provides a balanced and enjoyable listening experience. 4. Ergonomic Build for Comfort Weighing only 7 grams, the IM4 is designed with an ergonomic build ideal for all-day wear. Its lightweight design and comfortable earbuds ensure that you won't feel discomfort even after prolonged use. 5. CNC Aluminum Alloy Housing The IM4 features a CNC aluminum alloy housing that is not only refined in appearance but also skin-friendly with a premium texture. This high-quality material and craftsmanship ensure the durability and premium feel of the earphones.
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/mW 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
