The DX1 earphones utilizes an 11mm dynamic driver unit- With an aluminum-magnesium alloy topological diaphragm. From the driver's structure and manufacturing process to the selection of diaphragm materials, every step reflects careful consideration and deliberation of the finest details. Diamond-pattern topology diaphragm - This significantly reduces distortion caused by modal breakup, enhancing the expressiveness of the sound quality, which results in a fuller tone, wider dynamic range, and more vivid musical expression. Built-in 5kHz Notch Filter - The HiFi IEM wired earbuds features a 5kHz notch filter that attenuates specific frequencies. This reduces excess energy or resonance around 5kHz to minimize distortion, which enhances sound details, purity, and accuracy. Stainless-steel shell, ergonomic design - Luxurious texture, comfortable wear. The shell shape is ergonomically designed, drawing on LETSHUOER's years of custom dynamic driver in-ear monitors expertise, thereby avoiding ear canal pressure that can result from extended wear. 256-Core silver-plated monocrystalline copper - The wires are combined with the silver-plated shielding to enhance conductivity, allowing for more detailed audio signal transmission. 0.78mm dual-pin detachable cable design. It comes with either 3.5mm single-ended or 4.4mm balanced plug versions. The DX1 utilizes an 11mm dynamic driver unit. LETSHUOER dedicated two years to research and development, meticulously refining each earphone. The result is an 11mm dynamic driver with an aluminum-magnesium alloy topological diaphragm.