The Fosi Audio IM4 Open-Back HiFi IEM Earphones feature a 10mm N52 Dual-Magnet Dynamic Driver with a 2-PIN 0.78mm connector for high-quality sound performance.
The earphones come with a 4-core 392-strand 5N OFC Silver-plated Copper Cable for excellent continuity.
With a 3.5mm Gold-plated Plug and 109dB/mW sensitivity, these earphones are suitable for portable use, music players, computers, and smartphones.
The open-back design, detachable cable, and CNC aluminum alloy shell make them a versatile and durable choice for audio enthusiasts.