The LETSHUOER S08 HiFi Planar IEM features a custom fourth-generation 13mm planar driver diaphragm, meticulously developed for superior audio earphone. It uses advanced nanoscopic magnetron sputtering to apply a copper layer to the diaphragm, enhancing sound quality with an additional voice coil layer. The in ear monitor design is inspired by the number "8," with a sleek CNC precision-milled metallic shell available in black or silver. High-quality 4-core 30-strand 0.05mm silver-plated copper cables ensure excellent transmission and detailed sound